Cycling Bicycle Bike Rear Tail Safety Warning 8 LED+ 2 Laser Flashing Lamp Light Installed convenient and easy, it has 8 LED lights and 2 laser lights. Rechargeable battery, high content L1 Battery make it long use time and environmental protection, even decrease more cost. It is water-proof, improve the safety of ridding in rainy days (can't for diving use). Fashion cool "jewel" appearance design, light-weight and easy to use.