Features: 1. Improve cycling safety: The bright light of the taillights can clearly let the vehicles and pedestrians behind see the cyclists, greatly enhancing the safety of night riding. 2. With multiple modes: Many bicycle taillights have multiple working modes, which can be selected according to different environments and needs. 3. Easy to install: The bicycle taillight has a unique design and can be installed without tools. It is suitable for regular bicycles and mountain bikes. 4. Can withstand bad weather: The high-quality bicycle taillights have a rainproof and shockproof design, and can be used normally even in bad weather conditions, with high durability. 5. Convenient charging: The bicycle taillight is rechargeable and can be charged through the USB interface, which is very environmentally friendly and convenient. Color:as shown Size:as shown Material:plastic Package included:1 pc Note:Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-3cm measuring deviation due to manual measurement.