They are by far the easiest Interchangeables to install...
It is just a sleeve that glues into the hole.
The inner acts like a Brunswick Customatic fitting ball. It slides in and twists.
I have installed over 200 of these without failure between my shop and the 150 or so I installed at the Lane#1 booth in Alb. 2008.
I only offer these and the Vise IT at my shop. I stay away from the Switch Grip. Too much dangerous past history.
beans
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Thomas "Beans" Biniek Jr.
PBA Member and Pro Shop Owner/Operator
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