MACE brand 10% Pepper Foam sprays thick foam which covers an assailant's face. It evaporates to a lesser degree than pepper stream or spray; so, when the perpetrator attempts to wipe the foam away from his face, it would only get smudged more. Furthermore, pepper foam would cover and wrap around an attacker's eyeglasses if he is wearing one. Pepper foam comes in 2 sizes. The large model contains 67 grams and can generate 5 one second bursts with a range between 8 to 10 feet; the magnum model, on the other hand, contains 115 grams and can emit 8 one second bursts with the same distance as its smaller counterpart.