The Caldwell Duramax target is a self healing target made of ballistic polymer for maximum durability. The targets are self-healing and can be shot thousands of times. The Duramax Self Healing targets are rated for pistols or rifles from .22lr all the way up to 50 BMG. These reactive targets bring a whole new level of fun to the range. Watch them bounce, roll, spin, and flip when hit.FeaturesMade of ballistic polymer for maximum durabilitySelf healingTarget Bounces, rolls, and spins