This item is a Spring Cord Lock set, manufactured with premium and wear-resistant plastic materials, so that it can serve you for many years. High-grade material that can ensure its durability and practicability. It is widely used in all kinds of items which has rope or cords. Features - ColorLight Brown -Material:Zinc Alloy - Size: 2.50X0.70X0.70cm/0.98X0.28X0.28in - Wide application, it is suitable for a variety of DIY rope products and many scenarios. - You don't need to worry the shoe laces being loosening frequently. It can keep your shoelace tight. - They are perfect for shockproof cord, elastic cord, finer cords, pull cords, draw cords, wet cords, etc. - These Cord Locks are great for use on sweatpants or hoodies to keep from losing the drawstring and to tighten as well. - With rationalized dual holes structure design, Spring Cord Locks are easy to install and detach. Package list: 30 x Spring Cord Locks