Feature: 1. The use of ConvexMirrors greatly increases the field of view. 2. 360° rotatable design, can rotate to the angle according to needs. 3. Made of fine quality acrylic material, clear, light weight and wear-resistant in use. 4. Integrated molding, high-performances PA bracket, high strength, not easy to break, wear-resistant and corrosion resistant. 5. There is a protectives film when shipping to prevents scratches on the mirror surface. (Please remove the protectives film before use) 6. Suitable for 16.8-20mm handlebar of bicycle. 7. Can be used as a bicycle handlebar plug to effectively prevents dust, water, and other foreignobjects from entering the handlebars during daily Cycle. Specification: This bicycle rear view mirror is easy to install and it will make your riding safer, 360° rotatable design, can rotate to the angle according to needs. Features: The use of ConvexMirrors greatly increases the field of view. 360° rotatable design, can rotate to the angle according to needs. Made of fine quality acrylic material, clear, light weight and wear-resistant in use. Integrated molding, high-performances PA bracket, high strength, not easy to break, wear-resistant and corrosion resistant. There is a protectives film when shipping to prevents scratches on the mirror surface. (Please remove the protectives film before use) Suitable for 16.8-20mm handlebar of bicycle. Can be used as a bicycle handlebar plug to effectively prevents dust, water, and other foreignobjects from entering the handlebars during daily Cycle. Specifications: Color: black Material: PA+acrylic Rearview mirror diameter: 80mm / 3.1in Item length: 210mm / 8.3in Item weight: 109g / 3.8ounce Package size: 128 * 91 * 50mm / 5.0 * 3.5 * 2.0in Package weight: 133g / 4.7ounce Packing List: 1 * Handlebar Rearview Mirror 1 * Wrench 1 * Screw Package List: 1 * Handlebar Rearview Mirror 1 * Wrench 1 * Screw