Srixon z star tour yellow golf balls the srixon z star yellow is the ultimate multilayer golf ball designed for the player looking for a tour proven ball with great feel and distance control the high performance standard found in srixon product is evident in every detail of this product from the 324 aerodynamic invisiseamtm dimple design to the thin ultra soft urethane cover this ball is the next standard to which all balls will be measured features the z star is a high performance multi