The Mace Pepper Gun is one of the most accurate defense sprays available. The OC pepper spray formula is contained in a replaceable cartridge. The cartridge utilizes advanced bag-in-a-can technology that allows you to spray a constant stream,reaching up to 20 feet, from any angle.The trigger-activated LED light disorients an attackers vision and helps to accurately aim the Mace Pepper Gun in low-light situations. Each Pepper Gun includes a 28 gram OC cartridge with UV marker dye ingrediant, a water practice cartridge, and batteries for LED light opperation.