The Tannerite White-Lightning Rimfire Targets are great for the beginner or expert target shooter. This target can be used with a low-speed firearm including rimfires handguns and shotguns with a shooting distance of 50 yards or more. Includes: 12 rimfire target canisters mix catalyst measuring utensils and instructions. It's important to carefully read the instructions because this product has different properties than other Tannerite products. If used incorrectly this could pose a fire hazard or bodily harm.