Volvik ProBismuth 3-piece Golf Ball (Pack of 12), White Volvik is the #1 Color Golf Ball on Tour with 20 LPGA Tour players using Volvik's highly visible golf balls featuring 37 worldwide patents 3-piece Tour Performance - Explosive distance with a soft feel is achieved by World's 1st Patented Dual Core with a soft outer layer/hard inner Excellent putting feel and optimal spin rates by more durable and powerful Zirconium Cover and patented 446-Octahedron dimple pattern Available in White 92 Compression, 64 Cover Hardness; Optimal for 90-125 MPH Swing Speed