Not all bowlers are able to grip a bowling ball using the three finger holes. A ball with a retractable handle, such as this Ebonite Maxim ball, allows for easier carrying on the approach. Once the ball has been released, the handle recedes back into the bowling ball for uninterrupted rolling. Modifications to the lane approach and ball were vital to making bowling accessible for all participants.
( C ) Copyright 2018 IBMHOF (photo by Heritage Werks)