Roto Grip’s historic Nucleus Core is back with a new intro in their Cell lineup. Introducing the Eternal Cell. Eternal Cell extends the best selling high performance series in Roto Grip’s history with a polished option. The 75M Solid Reactive coverstock has been tamed down with a 1500 grit polished finish, making the Eternal Cell best on medium oil lane conditions. This low rg, high differential ball offers over 5” of track flare potential for users, creating aggressive core motion in the mid-lane distance. With its polished finish, Eternal Cell scoots through the front of the lane and dominates the backend with big angle to the pocket. Eternal Cell comes in a black/orange/raspberry color combination. If you’re looking for the biggest skid/flip motion in the Roto Grip lineup, look no further than the Eternal Cell, available from BowlersMart.com.