The Never Compromise Gray Zone (GZ) putters include both mallet and blade designs to fit any putting stroke. The GZ putters get their name from the gray center portion of the head that provides contrast with the black colored heel and toe regions and helps frame the ball at address. The heads are made from 303 stainless steel with an aluminum insert in the cavity to improve feel. The stainless steel face is thin to provide a better feel and distance control.