The 3 oz. MK-4 canister will deliver 20-25 short bursts of OC at an effective range of 10-12 ft.? The stream delivery method provides a target-specific, strong concentrated stream for greater standoff. The .7% MC orange banded canister indicates the major capsaicinoid level which is discharged at the nozzle at time of use.? The MK-4 is an ideal size for patrol officers to wear on a duty belt. This formulation has been tested and is non-flammable and Electronic Discharge Weapon (EDW) safe. Defense Technology First Defense OC Aerosols are produced in an ISO rated manufacturing facility. All Major Capsaicinoid percentages (MC%) are verified by an Independent Laboratory for quality assurance. The MK-4 is an ideal size for patrol officers to wear on a duty belt and will deliver 20-25 short bursts of OC at an effective range of 10-12 ft. This .7% MC OC aerosol product utilizes a stream delivery method providing a target-specific, strong concentrated stream for greater standoff.