Made from high quality silicone,super flexible,which is durable and not easily breakable These are easy to put on the chargers and take no time at all, just to wrap around follow its rotate route. Practical function: protect wires and power cords from dirt, frays, tangles and knots which can reduce the risk of fraying and breaking. These can used on micro US,earphones,type-c,lightning cables for all devices, including cell phones, computers, laptops, etc. SpecificationsMaterial:SiliconeLenght: 3.5cmWidth:2.5cmQuantity:20pcsColor:5 colors Package includes:20 x Cable Protectors Warm note-This twist cable protector is only suitable for round wires, not suitable for flat wires.-This product can only effectively reduce data line damage, not completely avoided