New in Box and 2nd quality. This ball is a 2nd due to the CG location in relation to the Pin and Mass Bias. 16 lbs Track Mean Machine Bowling Ball Pin : 3.5-4" Top Weight : 2 1/2 Ozs. The Mean Machine combines the new Fang LS Control coverstock and a redesigned Robo core for the ultimate hook, strong reaction and pin crushing power.