Watch Matt throw his Hammer Bad Ass Bowling Ball here
Bowling’s first R rated bowling ball The Hammer Bad Ass. The Bad Ass utilizes the Juiced Solid Cover with the new Spheroid core that gives hammerheads a huge backend motion.
See more at: https://www.bowlersmart.com/bowling-gear/bowling-balls/hammer/hammer-bad-ass-bowling-ball#sthash.IhovDANs.dpuf