REFLECTION FOR HIGH VISIBILITY: Made of high quality ABS material, which is very durable and lightweight, the colored reflective clips to the spokes of the wheels to improve latent visibility, improved safety at night and during bad weather conditions. APPLICABLE AND DECORATIVE: Suitable for all kinds of bicycles.This product has 4 different colors, it is a very good decorative ornament and protective equipment at night, the bicycle beam reflector is 75mm in length, fits spokes of 1.8-2.0mm in diameter. EASY TO INSTALL AND REMOVE: Cross slot structure, more solid, pull the reflector over the spokes and remove the spoke if you don't need it anymore, very easy to mount and remove. NEED EXTERNAL LIGHT: It's just a bicycle reflector, so it couldn't light up if riding in the dark without light, it needs outdoor light. It provides safety and funny DIY adornment, which makes your bicycle special. STRONG REFLECTION FORCE: 360 degree reflection for better visibility, make your bike more fashionable, and improve safety by increasing visibility at night and in bad weather conditions, it will be reflected in light irradiation and give warning of security, easy to find by browsing remote vehicles.