Deruicent 6pcs/Set Bicycle Lights Super Frog Silicone LED Bike Light Multi-Purpose Water Resistant Headlight (Red + White + Black + Battery) 6 PACK LIGHTS AND 6 PACK BATTERIES: 2 Pack white + 2 Pack Red + 2 Pack black, two for the front , two for the back and two for seat, make your bikes visible for night rides and let you be seen at night by passing motorists, very safe 3 SETTINGS: Fast Flashing Light, Slow Flashing Light, or Constant Light, You Will Get up To 45 hours constant lighting or 70 hours strobe,Designed with the water resistant, vibration-resistant and prevent-falling, it can be used in various circumstances EASY TO INSTALL QUICKLY, WITHOUT ANY TOOLS REQUIRED! Anyone can mount this taillight in less than a minute BRIGHTEST LED BIKE TAIL LIGHT TO IMPROVE SAFETY WITH INCREASED VISIBILITY FROM CARS EASY TO MOVE FROM BIKE: if you have to lock bike up outside, remove them and you can attach them anywhere like backpack dog collar stroller jogging helmet etc. SAFETY LIGHTS: not just for biking, but also great for walking/running at night, boat rails, camping or outdoor gear being used at night, or even bringing attention to a car parked on a dark street