Features: Convenient to use: With spring loaded design, firmly keep your cord tight and secure. Spring cord lock is for locking cord for easy use. Sturdy plastic toggle spring: Made of sturdy plastic material, durable for use and not easy to break. Cute oval shape with easy-matching black color, toggle spring stops have wide usages. Wide usages: These cord fastener locks are suitable for shoelaces, backpack cords, hoodies drawstrings, tents, sportswear, drysuits boots and many other outdoor and sports products. Specifications: Material: POM plastic material Cord lock size(LWH): 2.3 x 2.2 x 1.8 cm Each hole diameter: approx. 6 mm Color: black Shape: oval Package includes: 20 x Spring cord locks Note: Small parts, not suitable for children under 3 years old.