Gorge Groove Technology starts with arguably the most precise milling process in the industry. We mill the Gorge groove at PING so we can hold very tight tolerances to ensure maximum spin. By managing the process, we can achieve the optimal size and shape of grooves for generating consistent, reliable spin and trajectories for confident shot making. The 17-4 stainless steel head has a traditional shape and features a custom tuning port in the back cavity that expands the perimeter weighting, creating a high MOI and a very solid feel across the face. The Tour wedge is available in three sole widths: TS (Thin Sole) has the least bounce and is best for shallow swings and firm sand or turf conditions. SS (Standard Sole) offers medium bounce and performs great from most turf conditions and for most swing styles. WS (Wide Sole) has the most bounce and is exceptional in softer sand and turf conditions, or if you have a steep angle of attack. To determine the best wedge for you, consider your divot pattern. If you take deep divots, the WS will prevent excessive digging. If your divots are shallower, the TS will help you get the lead edge under the ball more easily and impart spin.