Sheet Stock, Acetal Copolymer, Grade Standard, Plastic Length 4 ft, Plastic Width 12 in, Plastic Thickness 0.625 in, Black, Plastic Clarity Opaque, Tensile Strength 9,500 psi, Impact Strength 1.0 ft-lb/in, Friction Coefficient 0.25, Water Absorption 0.2 Percent, Temperature Range 32 Degrees to 180 Degrees F, Plastic Hardness Rockwell M88