Zipper design, so you can opens and closes easily and quickly to add or remove cables according to your wire size. Black cable ties with adjustable design, can meet your different needs. Make the wires tie up stably. Although the adhesion of self-adhesive pad is very strong, if the self-adhesive pad lose their effectiveness, you can also use screws to fix the cable ties, because the items with built-in small holes, can be recycled. Self-adhesive pads can be good and long lasting for any flat surfaces, such as plastic, wood, glass, metal, rubber, etc. The wire holders are easy to use and remove. It can be adhered any surface quickly, and can be removed without any damage and residues. No any other tools required. The cord management system can work for power cords, charging cables, USB cords, festive lights, network cables, car, and more. It could be a great helper and a good gift for any cable users in the family and office. colour: Black Material: Nylon size: Large: 9.5 cm x 2 cm/ 3.7 x 0.8 inch Small: 9.5 cm x 1.7 cm/ 3.7 x 0.7 inch Package Contents: 50 x Small cable tie mount 50 x Large cable tie mount Note: Please apply the cable tie mounts on clean and smooth surfaces.