The bracket is made of PLA, and it can put a screen remote control on the bike handle, and supports 20-24mm thick bicycle handles. Colour:black Material:PLA Size:13 x 7 x 3cm Package Contents: 1 X Remote Control Bike Bracket kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.