1/2oz 17% OC Hard Case PS w/ Key Ring, Yellow Police strength. non lethal, with two million S.H.U. - The highest S.H.U. available - and 17% OC (Oleoresin Capsicum) formula - The hottest in the world. Hard case includes a key ring Safety lock prevents accidental discharge UV Dye Instantly effective - Best deterent for attacking animals and human. Made in the U.S.A.