XUEMEI Features: 1.Reliable Quality: The front and rear reflectors of the bike are made of high quality plastic, durable and waterproof, still in good condition after long time use; the reflectors are made of smooth material, easy to clean and wont take up too much time. 2.Easy to Install: Just need a screwdriver, first install the reflector in a fixed position, then tighten the screws. 3.Enjoy Night Riding: The reflector set makes you easily noticed by pedestrians and drivers on the road, reducing the risk of traffic accidents; in addition, the reflector is very bright once it is illuminated by headlights, making your bike look cooler and more stylish. 4.Wide Range of Applications: Bike reflectors are the perfect gift for cyclists, motorcyclists, drivers, hikers, night riding and jogging. 5.After-sales Service: If you have any problem, please contact us immediately, we will help you solve it as soon as possible. Specifications: Material: Plastic Color: Red/White Dimensions: 5.5 x 3.5 cm Rear Reflector: Mounted on handlebars with a diameter of 29.5~33mm Front Reflector: 22.2 ~ 27mm diameter handlebar mounted Rule: The front lights turn left and right, the rear lights turn up and down Notice: 1.Actual color may be slightly different from the image due to different monitor and light effect. 2.Please allow 1-3cm deviation due to manual measurement. includes: 1 * Rear Reflector(with bracket) 1 * Front Reflector(with bracket)