U Channel Stock, UHMW Polyethylene, Grade Standard, Plastic Length 10 ft, Plastic Length Tolerance +0.125/-0.000 in, Outside Leg Length 0.75 in, Outside Base Width 1 in, Inside Leg Length 0.375 in, Inside Base Width 0.5 in, White, Plastic Clarity Opaque, Tensile Strength 5,800 psi, Impact Strength No Break, Friction Coefficient 0.12, Water Absorption 0.01 Percent, Plastic Density 0.0339 lb/cu in, Plastic Hardness 66D