Reaction: Strong mid-lane and powerful backend

250 piece roll

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This line of bowling balls balances power and control by pairing the R-16 reactive coverstock and a light bulb-shaped core

The R&D team at Roto Grip worked hard to formulate the purest and most responsive version of the eTrax hybrid coverstock so far

Columbia 300 Dynamic Swing Bowling Ball Select Weight:16 lbs. Reaction: Strong mid-lane and powerfulColumbia 300 Dynamic Swing Columbia 300 is introducing the Dynamic Swing Hybrid by bringing back a modified version of the Full Swing core. They paired this popular core with the ERT Hybrid coverstock with a dull finish to dominate medium to heavy oil conditions and provide a strong midlane and backend reaction. Color: Black Caramel White All colors do vary somewhat from the picture shown Core: Modified Full Swing Coverstock: ERT Hybrid Finish: 500,