The 3 oz. MK-4 canister will deliver 20-25 short bursts of OC at an effective range of 10-12 ft.? The 360 stream delivery method allows the aerosol projector to disperse OC from any angle while providing a target-specific, strong concentrated stream for greater standoff. The green canister represents the inert training units which duplicate the delivery system for live products.? 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 First Defense Inert formulation provides the same functionality and targeting properties as active product duplicating the delivery system for training purposes.?The MK-4 will deliver 20-25 short bursts of OC at an effective range of 10-12 ft. This inert aerosol product utilizes a 360 stream delivery method allowing the aerosol projector to disperse OC from any angle while providing a target-specific, strong concentrated stream for greater standoff.table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }