Closed-ended zippers are zippers that don't separate at the bottom. An example of a closed-end zipper is the zipper on a fly of a pair of pants. This type of zipper is different from a separating zipper such as one you would find on a jacket, where the zipper comes apart completely at the bottom. Closed-ended zippers can be sewn into bags, purses, pillows, cushions, upholstery and many other sewing projects and crafts. Our stock lengths range from 3 inches to 108 inches (9 feet). Closed-ended zippers can only be used for uses where the zipper doesn't need to separate at the bottom. It isn't possible to convert a closed-ended zipper to a separating zipper.