This bowling ball ships UNDRILLED with no holes unless you add drilling services. Our beloved Tropical line has evolved again! The all-new Surge Core, with a boosted differential paired with our dependable Reactor formula will give you the curve you've been craving for. Six exciting colors and fragrances will appeal to just about anybody. - Fragrance: Cherry - Cover stock: Reactor Pearl Reactive - Weight Block: Surge Core - Ball Finish: 1500-grit Polished - Flare Potential: 2"-4" (medium) - RG: 15#-2. 58 - RG Diff: 15#-. 024