The Flash Bomb is a device that delivers a blinding flash of light into a room. They are utilized by S.H.I.E.L.D. agents with the purpose of blinding and disorienting targets allowing for precision strikes with minimal resistance.
The flash bomb is a small disk bearing the S.H.I.E.L.D. logo that emits a powerful burst of light. It can be set to operate on a countdown, with the countdown being displayed as blue lights on the edge of the disk's face.