Best Brand full 10% version with three ounces of spray at your fingertip. This is the style dispenser that police use for quick and easy access. Has a 3 year shelf life. 1-3/8" in diameter, 5.25" long. Active Ingredient: Oleoresin Capsicum (full 10% @ 2 million SHU's) very powerful and not legal in all areas, check local laws before ordering or carrying. Cannot be carried on an airplane or shipped by air. You must be 21 years old to order this product.