Galvanized state of the art feed bins with Spring-Lock Lid that resists wind & keeps out snow & rain. When open, the lid slides down & out of the way of feed truck's auger. Unassembled 6' diameter - 1 ring tall hopper bin with 60 Degree Collar. Fill height - 11'6", 3.1 Ton (40lb/Cubic Ft. Capacity). Call 800-364-1504 about shipping