Standard Carbon Fiber Round Tube, Material Carbon Fiber, Clarity Opaque, Color Black, Inside Diameter 1/4 in, Outside Diameter 5/16 in, Wall Thickness 1/32 in, Overall Length 4 ft, Tensile Strength 120,000 psi, Grade Standard, Density 0.05 lb/cu in, Wall Thickness Tolerance +/-0.010 in, Outside Diameter Tolerance +0.014/-0.006 in, Maximum Temperature 180 Degrees F, Tensile Strength Rating Excellent, Water Absorption Not Applicable, Wear Factor Fair, Corrosion and Chemical Resistance Fair