Features: Make of high strength PP, it has excellent wear resistance and impacts resistance. It can effectively prevent mud and water splashing, keeping riding comfortable and clean. Integrated high brightness warning taillights to improve the safety of nighttime cycling. Especially suitable for night cycling enthusiasts and those who need to ride in low light environments. Suitable for bicycles of various sizes, whether they are road bikes, mountain bikes, or recreational bikes, they can be easily installed. Designs to maintain the overall lightness of the bike, without adding burden, and maintain Cycling comfort. Light weight and easy to carry, is the perfect accessory for cycling. Specifications: Component: PP Size: about 34.5x8x5cm/13.58x3.15x1.97inch Maximums brightness: 30LM Battery: 3.7v300mAh battery Usage time: Constant light 3 hours / Flashing 11 hours / Pulsating 7.5 hours / Energy saving flashing 20 hours Charging time: 3-4 hours Input: 5.0V 500mA Package Includes: 1pc Bicycles Mudguard with Tail Light note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.