Non-flammable and Taser-safe. Highest quality materials and components are used. Use organic pepper resins that have at least a true 2,000,000 Scoville. Heat Unit (SHU) rating. 3 oz., 4�" H x 1 3/8" Dia.; approx. 24-28� sec bursts. 4 oz., 5�" H x 1�" Dia.; approx.. 32-36� sec bursts. Heavy Stream Pattern goes 12-15 ft