FEATURES ⤠Made of Polyoxymethylene (POM), also known as acetal, polyacetal, and polyformaldehyde, is an engineering thermoplastic used in precision parts that require high stiffness, low friction and excellent dimensional stability. ⤠It's widely used in leisure wears, sport wears, clothes and student bags, etc.Cord Locks fit on a variety of drawstrings. Replaces broken cord locks. ⤠Our cord locks are fit a variety of different drawstrings and types of cords. Can be used on everything from shoelaces, pack drawstrings, pants closures, Paracord products and a variety of outdoor and gym products.