Set yourself at any angle you want, the 360-degree rotating rearview mirror allows you to adjust it up, down, or to the side for optimal viewing in various road conditions. Enjoy a full view of your surroundings to ride with confidence. Compatible with handlebars with a diameter of 22-25 mm (8.66-9.4 inches), this bicycle mirror fits most bikes, including mountain bikes, e-bikes, electric bicycles, motorcycles, and electric scooters. Ensure the screws are properly aligned when installing. The rearview mirror is constructed from high-hardness aluminum alloy and durable plastic, offering a strong, lightweight, and stable design for lasting performance. Designed to withstand outdoor conditions, it features secure nuts to keep the mirror firmly in place. The handlebar mirror provides a wide, high-definition field of view, delivering clear visibility of vehicles and obstacles around you, including traffic approaching from behind.