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.
| Line | TNBA |
|---|---|
| Color | Red/Purple/Blue |
| Coverstock | GTR Pearl |
| Core | Raw Hammer Assault |
| RG | 2.48 |
| Differential | .056 |
| Intermediate Diff | n/a |
| Factory finish | 500-1000-2000-Factory Finish Polish |
| Weights | 12-16 lbs |
| Cleared USBC | Yes |
