Hook-and-Loop Fastener, Hook, Hook and Loop Shape Roll, Length 75 ft, Width 1 in, Color White, Flame Retardant No, Operating Temp. Range -30 Degrees to 110 Degrees F, Backing Material Woven Nylon, Shear Strength 14 lbf/sq in, Adhesive Type Rubber, Characteristics Adhesive for Indoor Use VELCRO(R) Brand white hook is one side of a reclosable fastener. It is backed with a rubber-based, general-purpose adhesive for superior bond strength. The adhesive cures to a full bond in 24 hours, and can withstand temperatures ranging from -30 Degrees F to 110 Degrees F.