Safety material: The bicycle rearview mirror is made of durable nylon resin material, which can effectively resist bumps, fractures, impacts, and corrosion. The handle of the mirror is made of ABS, and the sturdy structure ensures the lifespan of the mirror. Even on very bumpy roads, it won't easily break. Clear and Wide Field of View: The 8-centimeter diameter high-definition rearview mirror has a smooth and glare free surface, providing you with a clearer field of view. The convex mirror design maximizes the field of view. It allows you to see your surroundings and the road behind you clearly without turning your head, thereby improving your driving safety. Rotatable and Adjustable: This bicycle mirror features a rotating design. 360 degree free rotation, adjust the optimal viewing angle, and see different directions of light and road conditions. We provide you with a multi angle rearview effect to ensure safe driving. Easy to install: The bicycle rearview mirror can be quickly installed and removed without tools, only fixed with rubber straps, with short installation and removal time and flexible use. Widely applicable: This bicycle mirror is suitable for handlebars with an inner diameter of 15mm to 35mm. It is suitable for installation on both sides of the handlebars and is an ideal choice for most bicycles, such as road bikes, mountain bikes, electric bikes, hybrid bikes, city bikes, motorcycles, electric bikes, and electric scooters.