1 Look like a general lighter . but camouflaged 2 In a emergency, take it out and aim at the attacker?s face . push the button lightly and Spray gas to attacker , The excitant gas could make attacker blind, strong cough, afflictive to impermanency disable (Completely resume in 30 Min.) , This kind of gas is made from capsicum could not cause any hurt 3 Effective within 5 meters 4 Dont use against the wind