Duct tape offers a rugged tape that provides adhesion to most surfaces in many environments. This tape features a strong poly coated cloth backing with natural rubber adhesive. With up to 14 mil of thickness, duct tape is ideal for duct and moisture sealing, bundling, and packaging. Most rolls are sold in cases of 24. Duct tape is available here in 10 colors besides the traditional silver. Most rolls are offered in 2"; wide rolls, but there is also a 3" choice (general grade).