EVNROLL Z2S SQUARE-BACK BLADE REVERSE OFFSET Custom PUTTERDescription Square back blade, 100% milled 303 stainless steel with Face Forward Technology. Patent pending reverse offset hosel for Zero torque. Details ZERO represents a new era in putter design and putting performance. The secret is in the shafting. An unconventional reverse offset hosel presents a conventional, vertical shaft position while aiming at the club heads center of mass for ZERO torque. ZERO Face Rotation If face angle at impact is off