?Easy to Install?. ?Anti-rust?Processed by anodic oxidation, resistant to any corrosion in heavy rain or snow. ?Light Aluminum?Made from 6061 aluminum, super lightweight and virtually add no weight to your motorbike. ?Secure Fit?Machined by the latest-generation CNC technology to ensure high accuracy. Securely attaches your device to the mount. Your GPS will not fall off or slide around on bumpy trails. ?Angle Adjustable?Allow you to adjust the tilt angle to have the most comfy viewing angle no matter whether you are sitting or standing. Perfectly fit for Rugged mount for Garmin Montana or Trail Tech Dock for Voyager Pro (others may fit as well with AMPS bolt pattern). Comes with spacer, also fit larger GPS units, includes 10mm high spacer bracket.