Plastic Sheet Stock, Acetal Homopolymer, Standard, Plastic Length 12 in, Plastic Width 5 in, Plastic Thickness 0.625 in, Black, Plastic Clarity Opaque, Tensile Strength 9,600 psi, Impact Strength 1.2 ft-lb/in, Friction Coefficient 0.2, Water Absorption 0.25 Percent, Plastic Density 0.051 lb/cu in, Corrosion and Chemical Resistance Fair