Size: inner diameter 12mm, expanded width 64mm, maximum diameter approximately 20mm (64/3.14) Durable and Flame Retardant: The cable management sleeve is made of flame retardant material with a temperature range of -50C to +150C. It is free of chemical odors and features fire resistance, wear resistance, and easy operation. Easy to Install: Simply cut the cable protector to the desired length using scissors, then secure it in place with the included cable ties and self-adhesive cable tie holder. Quickly bundle, conceal, and organize cables. Helps prevent pets from chewing cords and protects wires. Wide Use: This cable organizer set is ideal for managing and hiding cables in various locations such as computers, baseboards, desks, TVs, and more. It can also be used in vehicles and other equipment requiring heat dissipation. Precautions Before Use: After cutting the cable tube, it is recommended to seal the cut edge with a flame to prevent fraying. Clean the mounting surface thoroughly and allow it to dry completely before applying the self-adhesive base. Ensure the surface is free of dirt, dust, grease, and wax.