Durable Material: This data cable storage box is made of durable material that is not easy to get dirty. Sturdy and durable, not easy to damage. Pull out the bottom to use as a phone holder. A good helper for thread management: The tangled long rope can be perfectly arranged in a few seconds, concealed and clean, dust-free. It is very suitable for organizing your cables to avoid damage. How to use: Simply insert the middle part of the wire into the groove of the shell, close the cover, and then turn the middle groove switch until the wire retracts. To unfold, simply grab both sides of the rope and gently pull. Easy to Use: This retractable cable management storage box can be adjusted to the cable length you want. Small size and light weight. You can put it in your pocket, backpack or suitcase when you go out. Scope of application: It can be used for USB cable, data cable, mouse cable, headphone cable, charging cable or other small diameter wires. It can be adapted to different cable lengths.