Innovative design Cycling computer mount+ bike Bell+ Gopro Mount+Light Mount, all in ONE! A Model Selling Point Out-front bike computer mount Integrated bicycle bell: loud and rattle free Made of strong Polymer Lightweight: 43 grams Accessories: 20 grams Suitable for 31.8 mm handlebar Adaptable distance between bike computer and stem Slot for action cam/light adapter (included) Handlebar install with hidden-bolt design Stainless steel bolts Color options: black B Model Selling Point Designed for one-piece integrated bar/stems Unique adjusting system to change the viewing angle of the bike computer Adjustable arm length to make sure your bike computer always fits and integrates nicely with the rest of the cockpit Discrete integrated bell: loud and rattle free GoPro mount included for more mounting options Extremely stiff and strong. Lightweight: 43 grams Accessories: 20 grams Installation display Super Integration Ability to Meet Your Needs Innovative design ECO-Friendly, BELL without battery bell activating: easy access to the chapper with your eyes on the road alloy bell anonized: light weight -2 gram with four holes so water can flow away integrated Gar-mi-n, Bryton, Cateye computer almost all model bike computer. with Gopro mount, light mount. 4 in 1 design save money