Product Description Model:HOTER Bike LED Flash Light Wheel Valve Cap Bicycle Lamp Color: blue, yellow, green, pink Recommended features: 1. When it is dark and your wheels start to move, they automatically light up creating a solid disk of light that appears to hover around your wheel 2. Four colors to choose 3. Each wheel light is fitted with 3 AG10 button cells (included) 4. Fits for Schrader valve. About Hoter Brand: H`o`ter is a new brand which adopt high standard quality control system and make all its products professional and good quality. They assure all of their products through strict quality control of high standard system. H`o`ter men just try their best to give customer the best quality and the service all over the world. Hoter means complete quality, when you buy Hoter products, you are buying the ultimate in performance and item life.