416 stainless steel knuckles. Milled here on our CNC's from 1/2" thick plate steel. 3D milled skull is surrounded by 3k twill weave carbon fiber inlays on both sides. Square bottom knuckles. Bright satin finish on steel. Large finger holes for large sized hands. If your brave enough, you could punch through a glass window with one of these, or weld one onto the shifter of your hot rod.   

As shown: $300 each, currently available for immediate delivery.