Zephyr Polishes recommends the use of these safety flanges with all of their airways.
These innovative Flanges are molded from High-Density Composite Nylon and reinforced Kevlar. You place either one on either side of your polishing wheel. They are lightweight but are as strong as metal. For use with 8″ and 10″ airway wheels with 3″ center plates, 5/8″ arbor hole
Zephyr Part# SFPR 58-4
Image Wash Products (Formerly Reflections Wash Products)