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TNBA Chalk

The Chalk is a limited production ball and raises awareness of The National Bowling Association (TNBA). With every Chalk ball we sell, we make a financial contribution to the TNBA. This money is used to further our sport and fund their Junior Scholarship Program.

Think this is the right ball for you? Visit our pro shop locator to get a closer look.


Ball Specs


  • Color Red/Purple/Blue
  • Coverstock GTR Pearl
  • Factory Finish 500-1000-2000-Factory Finish Polish
  • Best Lane Condition Medium Oil
  • Core Raw Hammer Assault
  • Available Weights 10-16

Rg / Differential

  • #10 RG (2.72) Diff (.031)
  • #11 RG (2.62) Diff (.031)
  • #12 RG (.039) Diff (2.60)
  • #13 RG (2.53) Diff (.055)
  • #14 RG (2.51) Diff (.055)
  • #15 RG (2.48) Diff (.056)
  • #16 RG (2.49) Diff (.051)

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