Durable Material: Made from sturdy plastic with a strong internal spring providing reliable tension holding cords securely without slipping during daily use. Easy Operation: Features a user-friendly push-button mechanism allowing smooth cord adjustment making it simple to tighten or loosen drawstrings quickly. Compact Size: Designed to fit most elastic cords and drawstrings providing practical use for ropes commonly used in bags clothing and outdoor gear. Wide Application: Suitable for shoelaces backpacks laundry bags sportswear hoodies hats tents and DIY craft projects offering versatile functionality. Value Pack: Comes with 10 durable black single hole cord locks providing enough quantity for replacements organization and multiple projects.