THROOM HANGTUFF™ Targets hang down from 2x3s, 2x4s and 1x6s. They attach easily with two wood screws, which are included. When hit, these targets flip around in all directions. For maximum movement, shoot .22-Cal. at the smaller 2, 3, 4 & 6-inch HANGTUFF™ targets. 8 & 10-inch HANGTUFF™ targets move more when hit with larger .38s, 40s & .45s. Both these targets and their flexible straps are made of SHOOT-THROO, our self-healing polymer, so bullets pass right through.