Comments about Turbo 2-N-1 Grips Switch Grips Switch-a-Roo:
Since all my balls are drilled for the I.T. (Interchangeable Thumb), having the Turbo 2-N-1 Grips is really-really nice.
If your bowling balls are drilled like mine then this Turbo Grips are an indespensable tool that you need!!!