These ball bearing roller sets rotate in any direction, allowing you free movement of your stock. Unlike other types of rollers, these 360° universal transfer bearings excel when materials are pushed in any direction. They mount easily on a piece of plywood, giving you your own outfeed table for saws, finishing tables and assembly lines. Rollers built with a hardened steel ball that rotates on 1/8" diameter internal bearings. Available in 16 or 25mm sizes.