Vise Inserts feature 3 different combinations to fit anyone's game. The Power Lift helps the bowler create more revs with the 1/4" forward pitch that aids grip. The oval side provides the perfect natural feel for a smooth consistent release.

Vise P/O Inserts are available in 32 sizes and 12 colors. 

- Sizes 9/16 through 13/16 have O.D. of 31/32" - Sizes 53/64 through 29/32 have O.D. of 1-1/32"