These 9mm Snap Caps are made of high quality brass that is ready to withstand an intense reloading/shooting practice using a 9mm pistol. Available as a set of 3, 10 & 20 rounds. ***Rubber cushion primer protects pistol's firing pin so you can practice without damaging it*** These are great for pistol shooting training and will allow you to train safely at home as no real ammo is used. Dummy rounds will help you see your trigger finger input and recoil anticipation when you drop the hammer on a dummy round thinking it is a live round. This product can also be used for tactical weapons malfunctions drills.