APPLY TO - Widely used for lanyards, luggage, clothing, backpack, shoelaces, tents, and more.SPECIFICATION:Color: Clear;Material: Plastic, MetalHole Size: 6 x 4mm/0.2" x 0.16"(L*W);Size: 19 x 15 x 11mm/0.7" x 0.6" x 0.4"(L*W*T);Net Weight: 12-29g;QUANTITY INCLUDED - 15pcs x Cord LocksADVANTAGE - The spring cord lock is made of plastic, durable and lightweight, not easy to break, and convenient to useINSTALL: Once the cord is easily threaded through the holes, a simple squeeze permanently the alignment mechanism and engages the metal spring to grip any cord.. Note: Please according to the length and width of your hole to choose the proper cord lock.