Half Round Conveyor Guide Rail UHMW Polyethylene Grade Standard Length 10 ft Inside Diameter 5/8 in Outside Diameter 13/16 in Bottom Opening Width 3/8 in White Tensile Strength 5 800 psi Impact Strength No Break Friction Coefficient 0.12 Water Absorption 0.01 Percent Plastic Clarity Opaque Plastic Density 0.0339 lb/cu in Plastic Hardness 66D