Explosive Distance delivered by Volviks Extreme Power Core. Accurate Greenside Control with VU-X Urethane Cover. Cube Octahedron Dimple Design provides Ball Flight Stability. VU-X Urethane Cover maximises Feel & Shot Shaping Control. VAS (Volvik Alignment System) - Created as a visual key off the tee and on the green. Available in a Variety of Colours: Green White Yellow.