1. 【Package Contents】40pcs round spring cord stopper. Material: Plastic Great for those who are troublesome of tying their hands and also recommended for children who cant get their bows. 2. Spring Design: Uses high quality springs to provide a firm grip and firmly grip the elastic cord or elastic rope. Use the spring cord stopper to secure your pouches, bags, clothing, hats and more without knotting. Single hole and two holes can meet your different needs. 3. Extremely easy to use: Simply press and release the protruding part, and you can easily loosen the string and squeeze it out easily, making opening and closing much easier. Great for those who are troublesome of tying their hands and also recommended for children who cant get their bows. 4. Compact and Stylish Features: The cord stopper weighs only 0.1 oz (3 g), and is made of durable plastic material plus a strong spring for durability that wont break easily. The round shape is smooth and has little burrs. 5. Wide range of applications: It is widely used in straps, bags, suitcases, clothing, backpacks, drawstring bags, sportswear, jerseys, shoe laces, tents, etc.