Duck Brand Indoor/Outdoor Fiberglass Carpet Tape is designed for use with foam/rubber, woven polypropylene, and jute-backed carpets. It has a double-sided permanent adhesive, providing excellent adhesion to both smooth and rough surfaces. The tape is fiberglass reinforced for extra durability and is both water and mildew resistant. It is recommended for permanent carpet installation in high traffic and/or high moisture areas such as bathrooms, basements and decks. Duck Brand Indoor/Outdoor Fiberglass Carpet Tape comes in a 1.88-inch by 75-foot roll. Duck Brand carpet tapes help keep rugs in place, quickly join carpet pieces and create safe, no-slip surfaces.