This bicycle mirror from VWP is easy to mount and adjust. The mirror gives a good view of the traffic behind you and can also be adjusted. It also does not vibrate on clinkers or cobblestones. The modern design makes your bike look great. The bike mirror comes in blue glass for a clear view, which would reduce glare. An aluminum clamp on the handlebars keeps the mirror securely in place. The bike mirror was tested as best by the bicycle association January 2020! Specifications: Housing color: black Glass color: blue Material: plastic, aluminum Clamp diameter: 22 mm Length arm: 16 cm Length mirror: 12 cm Mirror area: 10 cm Adjustable: no Position: left