In the HP Series, an additional 60 grams is placed in the grip end of the club to counter the heavier putter head. Counter-balance technology increases the club's moment of inertia (MOI) for stability throughout the stroke. There are two distinct head designs in the HP series putters: a traditional anser-style design and an oversized mallet style. Each head features an easy-alignment design that makes setting up accurately easier than ever before. Keep your game sharp with this reliable, comfortable, and stylish gear — made for modern golfers who want performance with personality.