APPLY TO - APPLY TO - Widely used on lanyards, luggage, backpack, clothes, shoelace, drawstrings, tents and more.SPECIFICATION:Color: BlackMaterial: Plastic, MetalCord Hole Diameter: 5mm/0.2"Total Size: 18 x 20mm/0.71" x 0.79"(D*L)QUANTITY INCLUDED - 20pcs x Plastic Cord Locks:ADVANTAGE - Made of durable plastic material, lightweight, no fade, not easy to rust, wear-resistant, break or deform, can be kept and applied for a long time.INSTALL: To use the cord lock, insert both ends of the cord into the ¼-inch hole forming a loop that is adjustable by moving the cord lock.Note: Please according to the thickness and width of your cord to choose the proper cord lock.