The mirror housing is made of durable, impact-resistant PA material that minimizes vibration and protects the handlebar. Weight: about 100 g Dimensions: approx. 26.3 x 7.5 x 2.2 cm Material: PP (coating) + acrylic (lens) Fits handlebars with a diameter of: 20-23 mm assembly on the side: LEFT Description: Light, Rotates 360 degrees, Fits most handlebars, Easy to install and use. Included in the set: 1 x Bicycle mirror 1 x Allen key A MIRROR INTENDED FOR THE OTHER SIDE OF THE HANDLEBAR IS AVAILABLE IN A SEPARATE AUCTION. The bicycle mirror is equipped with professional mirror glass that provides very clear visibility and a wide viewing angle. Both the mirror surface and the mirror arm can be adjusted 360°, allowing for perfect adjustment to the user's needs, and the scaled bicycle mirror bracket can be freely extended up to 50 mm in length. To install, use the Allen key (included) and then tighten. This bicycle mirror fits handlebars with a diameter of 20mm-23mm. It can be attached to scooters, city bikes, mountain bikes, e-bikes, and more. The anti-glare design effectively reduces glare, including glare from rear lights. This allows for safer driving at night.