Attaching our keeper rings to the yoke is a breeze with our handy Keeper Ring Expander Tool. Simply thread the metal prongs through the center of the keeper ring and squeeze to stretch the bands.
Specifications:

Instructions:
Place keeper ring on the 4 prongs on the applicator. Squeeze the handles until the ring is stretched wide. Put ring over the end of the cradle tip and release the handle. Repeat on the other side of the cradle.
Lifetime Warranty