Description This professional and practical Bike Rear Light Set, made of good material, strong and durable for lasting use. This practical and bright color Bike Tail Light Set can be well-fitted to your mountain bike or other types of bikes. Rechargeable, detachable and make you easy to ride. And satisfies daily night cycling. Features -Color:Black -Material:Silicone, ABS -Size:8.20X2.60X1.50cm/3.22X1.02X0.59in -Battery Type:Rechargeable Lithium Battery 500MAH3.7 -Charging Time:2h(Using a 5V power adapter) -Working Time:5h -This bike warning light comes with simple structure, very easy to install and remove. -Features the strong lighting mode, which provides you safe riding experience. -Bike Tail Light Set can be a practical gift for your friends who love to ride, and they will be very happy. -Good water-resistant level, it can prevent splashing water from any angle and withstand all adverse weather conditions. -The light is not only a bike LED light, but also a riding warning light, perfect for using at night. This bike warning light comes with simple structure, very easy to install and remove. Features the strong lighting mode, which provides you safe riding experience. Bike Tail Light Set can be a practical gift for your friends who love to ride, and they will be very happy. Good water-resistant level, it can prevent splashing water from any angle and withstand all adverse weather conditions. The light is not only a bike LED light, but also a riding warning light, perfect for using at night.