Spring Cord Lock Kit: 50pcs of 5 different types of spring cord locks , suitable for your different scenarios and drawstring. Please check the picture for the size, the cord locks do not include the drawstring Durable Material and Design: Cord Lock Stopper Made of strong POM plastic durable and light weight, not easy to break.Thicker and Stronger metal spring to provide quickly installation and release,the cord lock provides longer life and locks your rope more securely Multifunctional: Plastic cord locks are fit a variety of different drawstrings and types of cords. Widely used for shoelaces, pack drawstrings, pants closures, lanyard, luggage, clothing, backpack, sportwear,sweatpants, hoodies, hats, Paracord products and a variety of outdoor and gym product Easy tu Use: Press the cord lock top easy put the rope through the hole, and adjust the length of rope you need A plastic cord lock attaches to drawstrings and tightens without the use of knots. Cord locks allow mountaineers to fasten clothing and camping equipment quickly in cold conditions when the fingers are encased in heavy gloves. They consist generally of three parts: a barrel, a toggle, and a spring. Squeezed together, tension is released and the cord lock can move freely up and down the cords. Released, the tension is engaged and the cord lock stays in place 50pcs Plastic Spring Cord Lock for Drawstring Replacement, Paracord Lock Elastic Shoeslace Toggles Stopper Gloves Backpack String Lock Cord End Clasp