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 mm/ 0.12"Overall Size: 12.6 mm x 12.4 mm/ 0.49" x 0.48" (D*H)Packing Included: 20pcs x Metal Cord Locks