Carbon Fiber Rods and Half Rounds


CST Rods use a pultrusion process which pulls carbon fibers through a heated die, determining the shape of the profile. Polymerisation of the resin takes place in the die, forming a rigid profile with a diameter corresponding to that of the die and a length that is endless, in theory.

This type of construction offers a high stiffness to weight ratio rod with incredible linear strength, due to the orientation of the carbon fibers, and tight outer diameter (OD) tolerances.

Pultruded tubes and rods create:

  • High strength and stiffness to weight
  • Excellent resistance to fatigue
  • Dimensional stability: Low CTE (Coefficient of Thermal Expansion)
  • Resistance to corrosion
  • X-Ray transparency
  • Chemical resistivity
   

Comparative Technical Data Table
    DPP High Modulus Rods   DPP Rods   Standard Rods
    Inch-Pound Metric   Inch-Pound Metric   Inch-Pound Metric
Fiber Volume   63% 63%   63% 63%   60% 60%
Tensile Strength   348 ksi 2.40 Gpa   363 ksi 2.50 Gpa   250 ksi 1.72 Gpa
Tensile Modulus   34.9 msi 240 Gpa   20.7 msi 140 Gpa   19.5 msi 134 Gpa
Compression Strength   145 ksi 1.00 Gpa   232 ksi 1.60 Gpa   NA NA
Ultimate Elongation   1.10% 1.10%   2% 2%   1.20% 1.20%
Glass Transition Temp.   254°F 120°C   254°F 120°C   345°F 160°C
Fiber or Equivalent   Toho Tenax UMS45 F22   Torayca T700   Not Specified
Resin Type   Bisphenol A Epoxy Resin   Bisphenol A Epoxy Resin   Bisphenol Epoxy Vinyl Ester
0.010" (0.28 mm) 39.37" (1m) Long. DPP Carbon Fiber Rod Weight 0.1 grams.
Item #: CS-301 1M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $5.49 $4.67 $4.05 $3.85 $3.58

Qty:
0.010" (0.28 mm) 78.7" (2m) Long. DPP Carbon Fiber Rod Weight 0.2 grams.
Item #: CS-301 2M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $10.99 $9.89 $9.34 $8.79 $8.24

Qty:
0.020" (0.5mm) 39.37" (1m) Long. DPP Carbon Fiber Rod Weight 0.4 grams.
Item #: CS-305 1M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $3.95 $3.56 $3.36 $3.16 $2.96

Qty:
0.020" (0.5 mm) 78.7" (2m) Long. DPP Carbon Fiber Rod Weight 0.9 grams.
Item #: CS-305 2M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $7.61 $6.85 $6.47 $6.09 $7.46

Qty:
0.028" (0.7 mm) 39.37" (1m) Long DPP High Modulus Carbon Fiber Rod Weight 0.6 grams.
Item #: CS-309-HM 1M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $7.57 $6.42 $5.58 $5.29 $4.92

Qty:
0.028" (0.7 mm) 78.7" (2m) Long DPP High Modulus Carbon Fiber Rod Weight 1.2 grams.
Item #: CS-309-HM 2M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $14.12 $12.10 $10.59 $10.09 $9.42

Qty:
0.028" (0.70 mm radius) 39.37" (1m) Long DPP Carbon Fiber Half Round Weight 1.2 grams.
Item #: CS-801 1M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $10.53 $8.93 $7.76 $7.37 $6.85

Qty:
0.028" (0.70 mm radius) 78.7" (2m) Long DPP Carbon Fiber Half Round Weight 2.4 grams.
Item #: CS-801 2M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $16.92 $14.50 $12.70 $12.09 $11.28

Qty:
0.030"(0.69 mm) 2 Ft. Long, 2/pkg. Standard Carbon Fiber Rod Weight 0.3 grams.
Item #: CS-310-2
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $4.04 $3.67 $3.39 $3.26 $3.19

Qty:
0.030" (0.69 mm) 4 Ft. Long. Standard Carbon Fiber Rod Weight 0.7 grams.
Item #: CS-310-4
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $4.32 $3.92 $3.41 $3.15 $3.02

Qty:
0.030" (0.69 mm) 8 Ft. Long. Standard Carbon Fiber Rod Weight 1.4 grams.
Item #: CS-310-8 M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $5.88 $7.39 $6.47 $6.16 $5.75

Qty:
0.031" (0.80 mm radius) 39.37" (1m) Long DPP Carbon Fiber Half Round Weight 1.6 grams.
Item #: CS-802 1M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $8.52 $7.23 $6.28 $5.97 $5.55

Qty:
0.031" (0.80 mm radius) 78.7" (2m) Long DPP Carbon Fiber Half Round Weight 3.2 grams.
Item #: CS-802 2M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $16.70 $14.32 $12.53 $11.93 $11.14

Qty:
0.033" (0.85 mm) 39.37" (1m) Long DPP Carbon Fiber Rod. Weight 0.9 grams.
Item #: CS-313 1M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $4.76 $4.03 $3.51 $3.33 $3.10

Qty:
0.033" (0.85 mm) 78.7" (2m) Long. DPP Carbon Fiber Rod Weight 1.8 grams.
Item #: CS-313 2M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $8.88 $7.61 $6.65 $6.34 $5.92

Qty:
0.035" (0.90 mm radius) 39.37" (1m) Long DPP Carbon Fiber Half Round Weight 2.1 grams.
Item #: CS-803 1M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $9.07 $8.69 $7.69 $6.79 $5.91

Qty:
0.035" (0.90 mm radius) 78.7" (2m) Long DPP Carbon Fiber Half Round Weight 4.2 grams.
Item #: CS-803 2M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $16.97 $15.82 $14.23 $12.52 $11.75

Qty:
0.039" (1 mm radius) 39.37" (1m) Long DPP Carbon Fiber Half Round Weight 2.4 grams.
Item #: CS-804 1M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $9.18 $7.79 $6.76 $6.43 $5.98

Qty:
0.039" (1 mm radius) 78.7" (2m) Long DPP Carbon Fiber Half Round Weight 4.8 grams.
Item #: CS-804 2M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $18.00 $15.43 $13.50 $12.86 $12.00

Qty:
0.040" (0.94 mm) 2 Ft. Long 2/pkg. Standard Carbon Fiber Rod Weight 0.6 grams.
Item #: CS-315-2
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $5.88 $5.33 $4.93 $4.74 $4.63

Qty:
0.040" (0.94 mm) 4 Ft. Long Standard Carbon Fiber Rod Weight 1.3 grams.
Item #: CS-315-4
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $5.96 $5.42 $4.71 $4.37 $4.17

Qty:
0.040" (0.94 mm) 6 Ft. Long Standard Carbon Fiber Rod Weight 1.9 grams.
Item #: CS-315-6
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $9.26 $7.90 $6.89 $6.39 $6.10

Qty:
0.040" (0.94 mm) 8 Ft. Long Standard Carbon Fiber Rod Weight 2.6 grams.
Item #: CS-315-8
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $11.94 $10.23 $8.96 $8.53 $7.96

Qty:
0.047" (1.2 mm) 39.37" (1m) Long DPP Carbon Fiber Rod Weight 1.6 grams.
Item #: CS-316 1M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $2.65 $2.26 $1.96 $1.87 $1.73

Qty:
0.047" (1.2mm) 78.7" (2m) Long DPP Carbon Fiber Rod. Weight 3.2 grams.
Item #: CS-316 2M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $5.25 $4.51 $3.96 $3.77 $3.51

Qty:
0.050" (1.32 mm), 39.37" (1m) Long DPP Carbon Fiber Rod Weight 2 grams.
Item #: CS-317 1M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $3.49 $2.96 $2.57 $2.45 $2.28

Qty:
0.050" (1.32 mm), 78.7" (2m) Long DPP Carbon Fiber Rod Weight 4 grams.
Item #: CS-317 2M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $5.75 $4.93 $4.31 $4.10 $3.83

Qty:
0.059" (1.5 mm) 39.37" (1m) Long DPP High Modulus Carbon Fiber Rod Weight 5.3 grams.
Item #: CS-318-HM 1M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $9.29 $7.88 $6.84 $6.51 $6.05

Qty:
0.059" (1.5 mm) 78.7" (2m) Long DPP High Modulus Carbon Fiber Rod Weight 5.2 grams.
Item #: CS-318-HM 2M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $17.35 $14.87 $13.01 $12.39 $11.56

Qty:
0.059"(1.5 mm radius) 39.37" (1m) Long DPP Carbon Fiber Half Round Weight 5.3 grams.
Item #: CS-805 1M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $13.07 $11.09 $9.63 $9.14 $8.50

Qty:
0.059"(1.5 mm radius) 78.7" (2m) Long DPP Carbon Fiber Half Round Weight 10.6 grams.
Item #: CS-805 2M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $21.03 $18.02 $15.77 $15.02 $14.02

Qty:
0.060" (1.6 mm) 39.37" (1m) Long DPP Carbon Fiber Rod,. Weight 2.7 grams.
Item #: CS-319 1M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $3.64 $3.09 $2.68 $2.54 $2.37

Qty:
0.060" (1.6 mm)78.7" (2m) Long DPP Carbon Fiber Rod Weight 7.3 grams.
Item #: CS-319 2M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $4.99 $4.26 $3.73 $3.55 $3.32

Qty:
0.070" (1.8mm)39.37" (1m) Long DPP Carbon Fiber Rod. Weight 3.6 grams.
Item #: CS-320 1M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $6.72 $5.70 $4.95 $4.71 $4.39

Qty:
0.070" (1.8mm) 78.7" (2m) Long DPP Carbon Fiber Rod. Weight 7.3 grams.
Item #: CS-320 2M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $11.90 $10.20 $8.93 $8.50 $7.93

Qty:
0.079" (2 mm) 39.37" (1m) DPP High Modulus Carbon Fiber Rod Weight 4.6 grams.
Item #: CS-321-HM 1M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $12.47 $10.58 $9.20 $8.73 $8.12

Qty:
0.079" (2 mm) 78.7" (2m) Long DPP High Modulus Carbon Fiber Rod Weight 9.2 grams.
Item #: CS-321-HM 2M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $23.29 $19.96 $17.47 $16.64 $15.53

Qty:
0.079" (2 mm radius) 39.37" (1m) Long DPP Carbon Fiber Half Round Weight 9.4 grams.
Item #: CS-806 1M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $13.97 $11.85 $10.29 $9.78 $9.09

Qty:
0.079" (2 mm radius) 78.7" (2m) Long DPP Carbon Fiber Half Round Weight 18.8 grams. Oversized shipping required.
Item #: CS-806 2M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $27.54 $23.60 $20.65 $19.67 $18.36

Qty:
0.080" (2 mm) 39.37" (1m) Long DPP Carbon Fiber Rod Weight 6.2 grams.
Item #: CS-323 1M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $8.85 $8.05 $6.98 $6.47 $6.17

Qty:
0.080" (2 mm) 79.7" (2m) Long DPP Carbon Fiber Rod Weight 12.4 grams. Oversized shipping required.
Item #: CS-323 2M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $13.86 $11.88 $10.40 $9.90 $9.24

Qty:
0.098" (2.49 mm) 2 Ft. Long 2/pkg. Standard Carbon Fiber Rod
Item #: CS-325-2
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $7.76 $7.05 $6.52 $6.27 $6.12

Qty:
0.098" (2.49 mm) 4 Ft Long Standard Carbon Fiber Rod
Item #: CS-325-4
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $8.27 $7.52 $6.53 $6.06 $5.77

Qty:
0.098" (2.49 mm) 8 Ft. Long Standard Carbon Fiber Rod
Item #: CS-325-8
Oversized Shipping Required
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $16.56 $14.19 $12.42 $11.82 $11.04

Qty:
0.098" (2.5 mm) 39.37" (1m) Long DPP Carbon Fiber Rod
Item #: CS-325 1M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $6.87 $5.82 $5.06 $4.81 $4.47

Qty:
0.098" (2.5 mm) 78.7" (2m) Long DPP Carbon Fiber Rod
Item #: CS-325 2M
Oversize Shipping Required
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $8.40 $7.20 $6.30 $6.00 $5.60

Qty:
0.099" (2.5 mm radius) 39.37" (1m) Long DPP Carbon Fiber Half Round
Item #: CS-807 1M
14.7 grams
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $16.59 $14.08 $12.22 $11.61 $10.80

Qty:
0.099" (2.5 mm radius) 78.7" (2m) Long DPP Carbon Fiber Half Round Weight 29.4 grams. Oversized shipping required.
Item #: CS-807 2M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $32.50 $27.56 $24.38 $23.21 $21.67

Qty:
0.118" (3 mm) 39.37" (1m) Long DPP Carbon Fiber Rod Weight 10.9 grams.
Item #: CS-328 1M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $13.56 $11.50 $9.99 $9.49 $8.83

Qty:
0.118" (3 mm) 78.7" (2m) Long DPP Carbon Fiber Rod Weight 21.8 grams.
Item #: CS-328 2M
Oversized Shipping Required
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $20.77 $17.81 $15.58 $14.84 $13.85

Qty:
0.125" (3.18 mm) 2 Ft. Long Standard Carbon Fiber Rod Weight 7.6 grams.
Item #: CS-330-2
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $2.43 $2.05 $1.77 $1.64 $1.57

Qty:
0.125" (3.18 mm) 4 Ft. Long Standard Carbon Fiber Rod Weight 1.5 grams.
Item #: CS-330-4
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $5.50 $5.00 $4.35 $4.03 $3.83

Qty:
0.125" (3.18 mm) 6Ft. Long Standard Carbon Fiber Rod Weight 30.4 grams. Oversized shipping required.
Item #: CS-330-6
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $8.25 $7.04 $6.13 $5.70 $5.44

Qty:
0.136" (3.45 mm) 2 Ft Long 2/pkg Standard Carbon Fiber Rod Weight 8.8 grams.
Item #: CS-332-2
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $6.90 $5.82 $5.03 $4.65 $4.43

Qty:
0.136" (3.45 mm) 4 Ft. Long Standard Carbon Fiber Rod Weight 17.5 grams.
Item #: CS-332-4
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $12.42 $11.29 $9.81 $9.08 $8.66

Qty:
0.136" (3.45 mm) 6 Ft. Long Standard Carbon Fiber Rod Weight 26.3 grams. Oversized shipping required.
Item #: CS-332-6
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $19.27 $16.43 $14.32 $13.31 $12.70

Qty:
0.136" (3.45 mm) 8 Ft. Long Standard Carbon Fiber Rod Weight 35 grams. Oversized shipping required.
Item #: CS-332-8
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $24.83 $21.28 $18.63 $17.73 $16.56

Qty:
0.157" (4 mm) 39.37" (1m) Long, DPP Carbon Fiber Rod Weight 19.6 grams.
Item #: CS-335 1M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $14.43 $13.12 $11.40 $10.56 $9.87

Qty:
0.157" (4mm) 78.7" (2m) Long, DPP Carbon Fiber Rod Oversized shipping required, Weight 39.2 grams.
Item #: CS-335 2M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $28.88 $24.75 $21.67 $20.63 $19.25

Qty:
0.197" (5 mm) 39.37" (1m) Long DPP Carbon Fiber Rod Weight 31.5 grams.
Item #: CS-341 1M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $8.93 $7.57 $6.58 $6.25 $5.81

Qty:
0.197" (5 mm) 79.7" (2m) Long DPP Carbon Fiber Rod Weight 63 grams. Oversized shipping required.
Item #: CS-341 2M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $23.33 $21.54 $18.06 $15.56 $13.66

Qty:
0.236" (6 mm) 39.37" (1m) Long DPP Carbon Fiber Rod Weight 45 grams.
Item #: CS-344 1M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $18.78 $15.93 $13.84 $13.14 $12.23

Qty:
0.236" (6 mm) 78.7" (2m) Long DPP Carbon Fiber Rod Weight 90 grams. Oversized shipping required.
Item #: CS-344 2M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $37.56 $32.19 $28.17 $26.83 $25.04

Qty:
0.276" (7mm) 39.37" (1m) Long DPP Carbon Fiber Rod Weight 60.3 grams.
Item #: CS-346 1M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $18.56 $15.75 $13.68 $13.00 $12.08

Qty:
0.276" (7mm) 78.7" (2m) Long DPP Carbon Fiber Rod Weight 120.6 grams. Oversized shipping required.
Item #: CS-346 2M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $34.65 $29.70 $25.99 $24.75 $23.10

Qty:
0.315" (8 mm) 39.37" (1m) Long DPP Carbon Fiber Rod Weight 79.4 grams.
Item #: CS-348 1M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $30.71 $26.06 $22.63 $21.50 $19.99

Qty:
0.315" (8 mm) 78.7" (2m) Long DPP Carbon Fiber Rod Weight 158.8 grams. Oversized shipping required.
Item #: CS-348 2M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $47.00 $40.29 $35.25 $33.57 $31.33

Qty:
0.394" (10mm) 39.37" (1m) Long DPP Carbon Fiber Rod
Item #: CS-350 1M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $34.58 $29.34 $25.47 $24.21 $22.52

Qty:
0.394" (10mm) 78.7" (2m) Long DPP Carbon Fiber Rod
Item #: CS-350 2M
Oversized Shipping Required
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $64.57 $55.35 $48.43 $46.12 $43.05

Qty:
0.500" (12.7 mm) 2 Ft. Long Standard Carbon Fiber Rod Weight 118 grams.
Item #: CS-355-2
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $48.39 $40.83 $35.31 $32.66 $31.11

Qty:
0.500" (12.7 mm) 4 Ft. Long Standard Carbon Fiber Rod Weight 236 grams.
Item #: CS-355-4
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $87.11 $79.19 $68.77 $63.74 $60.78

Qty:
0.500" (12.7 mm) 6 Ft. Long Standard Carbon Fiber Rod Weight 354 grams. Oversized shipping required.
Item #: CS-355-6
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $135.17 $115.29 $100.51 $93.33 $89.08

Qty:
0.500" (12.7 mm) 8 Ft. Long Standard Carbon Fiber Rod Weight 472 grams. Oversized shipping required.
Item #: CS-355-8 M
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $174.21 $149.32 $130.66 $124.43 $116.14

Qty:
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $36.92 $31.64 $27.68 $26.37 $24.61

Qty:
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $19.36 $16.42 $14.27 $13.55 $12.61

Qty:
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $32.75 $27.78 $24.13 $22.92 $21.33

Qty:
Quantity   1 - 5     6 - 11     12 - 23     24 - 47     48+  
Price $63.92 $54.79 $47.94 $45.99 $42.62

Qty:

Prices are in US dollars and subject to change without notice.