The Hammer Bad Ass is one kiss ass bowling ball. This ball combines the Spheroid core and the Juiced Solid coverstock to create a ball that will truly be offensive to your competition. The core was engineered to lower the RG while maintaining a medium to high differential, creating an ideal ball reaction. The core was poured with Flex-Resin and the outer core contains Carbon Fiber making this ball hard hitting and durable. The Juiced Solid coverstock is changing coverstock technology by providing a ball that maintains its reaction shape longer with unmatched friction at the breakpoint. Color: Black/Orange Core: Spheroid with Flex-Resin Additive, Ceramix Surfacing Process, and Carbon-Fiber Outer Core Coverstock: Juiced Solid Reaction: Skid Flip Finish: 500, 2000 Abralon and Factory Polish at 300 RPM RG: 2.48 (15lb ball) Differential: 0.048 (15lbs ball) Recommended Lane Conditions: Medium Oil Manufacturer's Warranty: 3 Year Limited Spheroid Core: The Spheroid core has many of the dynamic properties found in some of the most successful core shapes in the history of bowling. Arguably, the most successful shape in history was used in the original Blue Hammer. This design was the founding premise behind our new Spheroid shape. The large spheroid was dynamically engineered with large grooves strategically placed along four quadrants on the perimeter in order to lower the RG, while maintaining a medium to high differential for ideal ball reaction. The Spheroid maximizes the friction enhancing properties of the all new Juiced Solid cover. As always with Hammer, we have poured the Spheroid core with Flex-Resin and the outer core with Carbon Fiber in order to create the hardest hitting and most durable ball possible. We back this claim with an industry best three year warranty. Juiced Solid: Leaps in coverstock technology only happen every so many years. Avalable in 12-16 lbs.