Byrna's most powerful proprietary pepper and tear gas blend: OC CS all in one shot with quick-acting incapacitating effects higher dispersion and higher concentration of chemical irritants than any other round found on the market today the Byrna Max projectiles are designed for maximum stopping power.Physical symptoms of chemical irritants often result in disorientation and agitation which can lead to a state of fear anxiety and panic in would-be attackers. Upon impact the projectiles burst creating a cloud of chemical irritant that rapidly disperses into the air to quickly incapacitate an attacker. Within seconds the saturation area extends in all directions around the point of impact.Physical effects: Burning in throat Wheezing Gasping Dry cough Shortness of breath Gagging Inability to breathe Nausea Burning of the eyes Burning of the lungs Chest tightness Excessive salivationIncrease your confidence while keeping yourself and your family safe.