Planet Bike Blinky 1 bike tail light Made using sustainable methods Made using high quality materials Tested to ensure quality and durability 3 Super-bright red eXtreme LEDs provide 220 degrees of visibility for up to 1 mile Flashing and steady mode Ultra compact case is weatherproof, light weight and durable Seat post and seat stay mounts included Up to 100 hours of run time of 2 N batteries (included)