APPLY TO - A spring cord lock can be widely used for lanyards, luggage, clothing, backpack, shoelace, tents, and moreSPECIFICATION:Color: BlackMaterial: PlasticSize: 26.5 x 14 x 9.7mm / 1" x 0.6" x 0.4" (L*w*T)Hole Diameter: 8mm/ 0.32"Net Weight: 42gQUANTITY INCLUDED - 20pcs x spring cord lockADVANTAGE - Made of plastic, durable and lightweight, not easy to break and sturdy you can use them for a long timeINSTALL: 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 needs choose the proper spring cord lock.