U Channel Stock, Polycarbonate, Grade Standard, Wall Thickness 0.05 in, Plastic Length 3 ft, Outside Leg Length 0.345 in, Outside Base Width 0.365 in, Inside Leg Length 0.295 in, Inside Base Width 0.265 in, Clear, Plastic Clarity Clear, Tensile Strength 9,700 psi, Impact Strength 14 ft-lbs/in, Friction Coefficient 0.53, Water Absorption 0.13 Percent, Plastic Hardness Rockwell R120