Made of elastic silicon rubber, silk surface, not easy dirty. With sticker backside, strong adhesive. Elastic rubber for you put or take off the wire quickly. Each round clip has 2 holes, here have 3 kinds: 1,2&3 clips. Price is for 3 clips- total 6 holes, (1&2clips price some lower). This Clip can hold most of wires on market, like 2.7mm phone USB Cable to 5.8mm Power Cords, or Bluetooth earphone, headphones with line, chargers etc. Help you neat the wires in company, car, home desk or wall, no need look for them.