MTB PRIME is the next generation of 3-piece urethane golf balls that inherit the blood line of the first MTB (My Tour Ball). The first ball speed is fast, low driver spin and the newly developed FLEX+ Mantle spins have been set for a very soft feel that many golfers prefer to enjoy. The amount of spin on irons required by many amateurs has been utilized with a low ballistic dimple pattern to reduce blow-up. It helps to score up all golfers, regardless of skill Core: The newly developed ultra-high rebound core achieves initial speed up and low spin for the driver and FW; Mantle: The newly developed FLEX+ mantle increases the amount of spin on the short irons for a more mild strike. Dimple construction: The newly developed dimple construction reduces wind impact on low ballistic and achieves improved distance and control performance. Urethane Cover: The durable cover is not only the ability of the ability of the amount of spin it is more than just the ability of spin it is more comfortable to the amount of spin you can feel of water. ■ USGA / R&A Official Ball