These cable ties are great for binding electronic cables or wires together, helping to keep them organised, tangle-free & out of the way. To use, simply place the tie around whatever needs binding & pull the tip of the cable tie through the open case at the other end, pulling it as tight as you need it. The open case contains a ratchet & once the tip has been pulled through, it cant be pulled out again, it can only be made tighter, providing a secure hold. Cable ties have many uses, including organising cables / wires, keeping bags / cases shut during storage or transport, & for preventing hubcaps from falling off a moving vehicle.