Inserts & Slugs

JoPo Twist Inner Sleeve Blank - 5 Pack Contains: 5 BLANK (No Slug) inner sleeves that twists into the bowling ball. **Does NOT contain outer sleeve** Benefits of the Twist: The thread-like feature absorbs the load of the weight and the velocity of the...

JoPo Twist Outer Sleeve - 5 Pack Contains: FIVE outer sleeve for the JoPo install **Does NOT contain inner sleeves**   Benefits of the Twist: The thread-like feature absorbs the load of the weight and the velocity of the bowling ball delivery; i.e...