Mounted under the saddle or seatpost to make the bike look perfect The Angle can be adjusted.Heads-up positioning provides increased safety. QUICK & EASY to install Mount on your bicycle. Solid and : The mounting bracket that fixed to your bicycle is made of high quality material, can be fixed under your bicycle saddle firmly, solve the problem of losing the radar due to unstable fixing on the seat post. : this mount allows you to mount the radar under the saddle, it keeps the radar in a higher position than on the seat post, so that the radar sensibly detects arriving cars better, provides visual and audible alerts to warn of vehicles approaching. Quick & Easy to Install:easy to assemble and adjust, hooks perfectly to the saddle rails and remains stable even on rough roads. excluding tail light Colour:Black Material:plastic Package Contents: 2 x Tail light bracket 4 x gasket with wrench 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.