Storage or perhaps beer brewing (micro brewery) vessels.
Base = 2400mm long, 1900mm deep and 280mm high.
Shelf = 1900mm deep, 400mm wide and 485mm high.
Vessels (each one) = 800mm diameter and 1300mm high. They are also on legs so when bolted to the base, the overall height is around 1800mm.
The vessels have external volume sights which are labelled up to 8.
Each vessel holds 650 litres. Buyer collect.