5 LED Safety Flasher, Includes A Neon Colored Jogging Strap To Attach To Your Arm For Jogging Or Walking At Night & A Bike Mounting Kit That Allows Mounting The Light To The Seat Post On Virtually Any Bicycle Without Any Tools, 6 Flashing Modes & A Belt Clip, Versatile & Universal, A Perfect Safety Device, Uses 2 "AAA" Batteries, Included.