Srixon Z-STAR X Yellow golf balls provide exceptional feel around the green and optimal distance off the tee. These high performance 3 piece golf balls have a lower compression, fly longer, and feel firmer than the Z-STAR. Z-STAR X Yellow golf balls have a slightly firmer feel for exceptional distance without sacrificing green-grabbing control. They feature an ultra-thin urethane cover, a high energy gradient growth core, and a new dimple configuration that maximizes performance. This may contain a mixture of different year models.