18-inch Sports Zipper is available in 9 colors! The listed zipper length is determined by the length of the top stop to the bottom pin and box. The tape extension is not considered in the measurement. Sports Zippers are non-separating polyester tooth zippers. Ideal for clothes and accessories. Use them on slacks, pants, and other active wear. Sporting equipment, backpacks, and duffel bags won’t be complete without these!