Specification: Product size: about 80x42x20mm/3.15*1.65*0.8in. Net weight: about 66g. Main material: aluminum alloy. Feature 6: Bike Speedometer Stem Mount. Feature 5: Bike Computer Extension Bracket. Feature 4: Bike Stopwatch Holder. Feature 3: Camera Light Support Stand Accessories. Feature 2: Bike Stopwatch Mount. Feature 1: Bicycle Computer Holder. Application: for Garmin Bryton IGS, cat's eye series. Bicycle Computer Holder Mountain MTB Road Bike Stopwatch Mount Bracket Cycling Camera Light Support Stand Accessories Set for Garmin Bryton. Feature: 1. Save the space of the bicycle handlebar: It can be equipped with a sports camera or a round bicycle light, which saves space and is more tidy and beautiful; 2. 3 types of computer bases: compatible with most computer systems such as Garmin, Bryton GPSPORT, cat's eye etc. 3. Stem installation, central viewing angle: Keep the stopwatch in front of the stem, and the viewing angle is more comfortable. Package include: 1 * Bicycle Computer Holder 1 Set * Accessories