Specification: Producer: ROCKBROS Material: Aluminum + plastic (overlays) Compatibility with computers: GARMIN/BRYTON/WAHOO Overall dimensions: 8.5 x 3 x 4.4 cm Weight of the handle itself: about 39 g Color: Black + silver inserts The ROCKBROS FK-305 stem bike mount allows you to mount a computer/GPS and a camera or flashlight (screw mount required) to your bike stem, made of high-quality aluminum. Mounting the mount is very simple – it attaches to the stem using long screws with aluminum bushings. The mount fits stems with a screw spacing of 4 cm or less. Product features: Durable and lightweight construction Very easy and quick installation Possibility to mount a counter/navigator and a flashlight at the same time Adapters for various computer models included – GARMIN/BRYTON/WAHOO Included in the set: Bracket for mounting the counter and lamp on the bridge Adapters for computers: GARMIN, BRYTON, WAHOO 2x mounting screw 2x screw washers 2x Allen key 2x mounting screws for adapters