APPLICATION RANGE:The cord lock is used to organize the cord ends to prevent the rope from slipping, it is suitable for different kinds of draw cords/ropes, so that your cord does not become loose or knotted, and remains stable. Widely used in clothing, shoes and hats, backpacks, gifts, protective gear, handmade DIY, hardware accessories, and other industries.DURABLE DESIGN:Made of premium-quality plastic, it has good wear resistance and pressure resistance, good tensile toughness, and durability, and it is lightweight and convenient to use. Built-in spring leaf, not easy to rust.Use a reliable spring-loaded design to give you a secure grip and keep the rope taut.PACKAGE INCLUDE:100 Pack of Cord Locks, which size is Hole Diameter: 8mm / 0.32 inch, Overall Size: 17x22mm / 0.67x0.87 inch(DiaxH).NEED ATTENTION:Please choose the appropriate hole diameter according to the thickness of the rope.