MOP BUCKETS, GALVANIZED, 35 QUART, WITH 2″ CASTERS Constructed of .024 in. mill-galvanized steel and hand soldered for extra strength and leak resistance. Top reinforced with 1-1/4 4″ steel wire rim. Embossed, permanent graduations for easy measuring of water and solution. High quality, double ball bearing casters for easy mobility. 2″ casters.