*** Promotion Buy 2 Dozens Get 1 Dozen Free *** 100% Urethane Cover A soft, cast urethane cover allows the grooves of the wedge to better grip the golf ball for increased green-side spin. A crosslinking chemical reaction forms the urethane material, which creates an irreversible link for improved shear resistance and greater durability. Hi-Spring Core A core made from soft flexible materials with increased elastic components delivers better and softer feel with an ultra-low 40 compression. Speedmantle™ with HFMq A firmer second layer surrounds the soft inner core and allows for an explosive transfer of energy and increased ball speeds.