The 18 x 24 Steel Competition Target meets the guidelines developed by the Steel Challenge Shooting Association. The strike face is made of 3/8″ AR500, rifle rated steel. All brackets and bolts included with the system. The multi-use base is made of steel and accepts a 2×4 to hang the Steel Target or 1×2’s to hang steel or paper targets. All you provide is the lumber. For its size, this 18 x 24in Steel Competition Target System is still easy to take apart and set-up anywhere. Ships unpainted. Patent Pending.