Description:The Metal Cord Lock is made of alloy, lightweight and flexible, wear resistance, sturdy and durable, not easy to break and rust, long service life.Spring-loaded design, the metal hole cord lock is convenient for locking cord, help keep your cord tight and secureOnce the cord is easily threaded through the holes, a simple squeeze permanently the alignment mechanism and engages the metal spring to grip any cord.Use to secure clothing, hoodie, backpacks, outerwear, drawstrings, shoelaces, elastic rope, pants closures, etc.Specification:Color: BlackMaterial: AlloyHole Diameter: 3.8 mm/ 0.15"Overall Size: 25 mm x 8.3 mm/ 0.98" x 0.32"(L*W)Packing Included: 20pcs x Metal Cord Locks