With a large viewing surface, a large mirror, ideal for most bicycles. With an arm for better adjustment on the handlebar, it allows optimal visibility. The mirror has a diameter of 9 centimeters, offering a wide viewing angle. The arm has a total length of 20 centimeters. It is easily installed with a small tool that you can find in every home, while the package includes an elastic ring for adjustment on handlebars with smaller diameter. It can be placed either on the right or left side of the bicycle.