The Do All Outdoors 4 Inch Hot Box Ground Bouncers are action targets that are unpredictable and they challenge the shooter to locate and readjust for every shot. They will fly, bounce, roll and run every time they are shot. The technologically advanced material will handle thousands of rounds from .22 to .50 caliber. These targets are built for long life and countless hours of fun. Handles 1,000 plus rounds Fly, Bounce, Roll, and Run every time they are shot Rated For all calibers .22 to .5O Cal. Target self heals upon impact Never the same shot twice