Super Bright 3 Red LED Taillight, Rear Rack/Carrier Light, Easy to Install, Built-in Reflector The 3 Super bright Red LED's light keeps you safe under low visibility conditions Can easily turn the light on and off by pushing in the Red button on the bottom of the light Great for cycling at night or in places where visibility and safety are a concerns Bicycle rear rack taillight mounts on a carrier rack (two screws to mount) note: batteries Not included