Saddle Rider Threaded Insert for Rubber Endpin Ball

The Saddle Rider Hard Polymer Threaded Insert (¾ inch diameter) for Unthreaded Rubber Ball.  Allows the use of Saddle Rider brand or generic rubber tips, furniture ends, or crutch tips (¾ inch size) with Saddle Rider brand steel endpin tips. This threaded insert, together with the unthreaded rubber ball makes the threaded endpin rubber ball.