Features1Ergonomic design: Computer sits slightly lower than the top of handlebars. 231.8mm bar clamp diameter: suits most bicycles. 31/4 turn twist for mount/dismount. This mount length fits road bike or mountain bike. 4It suits Garmin 200, 500, 800. 5This mount length fits road bike or mountain bike. 61/4 turn twist for mount/dismount.SpecificationThis handy tool is ly designed for installing stopwatches and bicycle computers while Cycle. Its ergonomic design takes human beings' body structure into account and makes people most comfortable. It suits Garmin 200, 500, 800. Features:Ergonomic design: Computer sits slightly lower than the top of handlebars. 31.8mm bar clamp diameter: suits most bicycles. 1/4 turn twist for mount/dismount. This mount length fits road bike or mountain bike. It suits Garmin 200, 500, 800. Specifications:Material: PVC Color: Black / Green / Red (optional) Item size: Approx. 11 * 3.18cm / 4.49 * 1.25in (L * D) Item weight: 20g / 0.70oz Package weight: 23g / 0.81oz Package List:1 * Bicycle Computer Mount Note:Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same.Package List1 * Bicycle Computer Mount Note:Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same.