The Staff Model X generates super long distance and high spin. A Tourcaliber 4piece urethane ball that creates premium precision speed and consistency. The unique VCor core optimizes energy transfer to produce maximum distance and velocity. A firm compression core includes a velocityboosting additive that helps the ball fly off the face with super fast ball speeds. The thin outer cover creates tons of spin to give players more stopping power around the greens. GlobalGolf.com online store offers superior selection service and quality for your Wilson golf Balls needs.