The Tannerite 10 Pack of 1/2 Pound Exploding Targets is the leading brand for firearm practice. This pack requires a 40-grain bullet with a traveling speed of 2 000 feet per second to make an explosive impact. Key quality features include one mixing container one set of earplugs 10 catalyst pack and two stable compounds. With each Tannerite product instructions are included and should be read carefully before use to avoid bodily injury.