ROTO GRIP Pro CG TechnologyROTO GRIP's PRO CG technology is taking layouts and ball reaction to the extreme. Once only used on the PBA Tour for condition specific drillings, these balls are now being made available in limited quantities to the general bowling public. Why As the requests, requirements, and styles of today's bowler changes to address new lane conditions and patterns, ROTO GRIP is answering by providing and packaging these items separately from the standard first run items due to their unique nature and value.ROTO GRIP PRO CG bowling balls are All first quality ROTO GRIP bowling balls Manufactured with the same high quality standards as all other ROTO GRIP products Manufactured with the highest integrity Made with the same high quality materials as all other ROTO GRIP products Great for specialized layouts and drilling options Potential for enhancing dynamic use of core position Meet all A.B.C., U.S.B.C. and P.B.A. regulationsWIDELY USED BY ROTO GRIP PBA STAFFERS BE THE FIRST AND MAYBE THE ONLY ONE TO OWN A PRO CG IN YOUR BOWLING CENTER TO OWN ONE OF THE ALL NEW PRO CG SERIES BOWLING BALLS. COMES WITH COMPLETE DRILLING INSTRUCTIONS AS RECOMMENDED BY ROTO GRIP AND THEIR PRO STAFF.USED ALMOST EXCLUSIVELY ON THE PROFESSIONAL BOWLING TOUR....As the weak are eliminated, an EPIC BATTLEtm rages on! Roto Grip has forged the most effective weapon for the battlefield and puts it in the palm of your hand.Armoring the EPIC BATTLEtm is the new Ultimate Visiontm solid particle coverstock. The unique blend of a super strong base reactive material in combination with a light particle load gives you traction in the heaviest of oils.At the heart of the Battle is the new Maximus IItm weight block. This low RG 2.48 High Differential .050 core creates a Mass Bias Differential of .026 that generates an earlier move in the lane, then delivers a bone crushing backend reaction.Product Type Bowling Balls