This is 12 Gauge High Decibel Muzzle Flash Bang Ammo. This highly effective diversionary 12 gauge round produces a stun/diversion effect by using a bright blinding flash with an extremely powerful concussion blast from a 12 gauge shotgun muzzle. Use only in situations where a reduced probability of serious injury is appropriate. Use of this product may cause blunt trauma such as bruises, skin abrasions, etc. Shot placement and distance are factors in determining the extent of any possible injury. It is truely an awesome experience indoors and out. Hearing protection is required when firing this ammo, it is extremely loud and dangerous.