The Black Durable Natural Gum Foam Textured Sheets are made with an open-cell foam which permits water, air, and gases from being absorbed. The textured sheets are designed to reduce and prevent slipping. The natural gum foam is able to recover after being compressed. It is often used in applications with continuous sealing, such as doors. Thickness: 1 Inch Thickness Tolerance: -0.060" to +0.060" Inch Hardness Rating: Medium Temperature Range: -20° to 160° F Cell Type: Open For Use Outdoors: Yes Tensile Strength Rating: Not Rated Oil-Resistance Rating: Not Rated Color: Black Width: 36 Inch Length: 5 Ft.