Wilson fg tour pmp oil can wedgethe wilson staff fg tour pmp wedges feature precision milled performance technology which widens the milled hm grooves for maximum spin on full shots in addition eleven laser etched micro spin lines between each of those grooves increase spin on partial shots the gun blue pvd finish gives this wedge a modern sleek lookprecision milled performance new maximum volume hm grooves achieved by making each groove wider produces enhanced spin on full shots