Sigma 2 Tyne Putter - Stealth Boasts a PGA Tour-winning design, back by popular demand for its stability and ease of alignment. New micro-lines visible from address provide added texture and a contrast that amplifies the ball-framing and parallel alignment. The 365-gram head stays extremely stable on short putts and delivers ample feel for longer attempts. The Tyne can be custom-built as face-balanced or mid-hang to be optimized for straight or slight-arc stroke types. Dual-Durometer Face The soft, responsive face is the result of a dual-durometer PEBAX material. A soft front layer ensures precision for shorter, delicate must-makes. A firmer back layer offers solid feedback and distance control for holing longer putts. Combining the two hardnesses of the PEBAX and utilizing our TR face pattern provides a feel preference that appeals to a large segment of golfers while improving overall consistency. TR Technology Touch and pace are further enhanced with PING’s innovative, patented TR face pattern, which varies in depth to speed up off-center impacts for consistent ball speeds. This precision pattern helps ensure full-face forgiveness to improve accuracy. Grip Options Three proprietary PING grip designs allow you to dial in your optimal fit and feel. The PP60 is midsize and lightweight, designed to fit the contours of the hands with flats on the top and sides. Slightly heavier, the PP61 has an exaggerated pistol shape and is inspired by the popular PP58 grip. The PP62, while still lightweight, has a larger, more rounded shape to promote quieter hands.