Heavy-duty 2 ft x 4 ft quick assembly tray stand. Absolutely no tools required. Can be assembled in 5 minutes or less. Accommodates all popular brand (ID) inside dimension trays and reservoirs. Overall height is 25 in. Height from bottom bar to floor is 18 in without casters. Outside dimensions: 53 in length x 28.5 in wide. Inside dimensions: 51 in length x 26.5 in wide. Tray sold separately and may fit differently depending on brand.