JoPo Grips Twist Inner Sleeve With 1 1/4 Slug

Description JoPo Grips Twist Inner Sleeve With 1 1/4 Slug Contains: One inner sleeve 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 bowling ball delivery; i.e. visualize pulling a nut straight off a bolt without unscrewing it.The Twist cannot be removed from the bowling ball without the inner being rotated 360º Easy to install and superior quality compared to other systems Length: 2 3/4. Hardness: 75   JoPo Grips, a company with a new interchangeable thumb insert. This insert uses patented technology, creating a durable bowling grip that will enhance your bowling experience.   ,