Using these Taser cartridges is straightforward. First, make sure your Taser device is one of the compatible models (X26P, X26C, or M26C). Open the cartridge compartment of your Taser and insert the new cartridge firmly. When facing a threat, aim at the attacker within the 0 - 15 - foot range and activate the Taser. Remember, these cartridges are for self - protection. Keep them in a dry and cool place to maintain their performance. Check the cartridges regularly for any signs of damage. If you use a cartridge, replace it as soon as possible to always have protection ready.