Heavy duty cast aluminium base with four legs and folding top plate which allows table tops to fold vertically for stacking. Adjustable feet for levelling. Suitable for outdoor use. Reduces table storage room when not in use. Suitable for tops up to 900mm round and 800mm square at standard height. Also available in bar height. Cast aluminium will tend to oxidise over time causing some discolourisation - regular maintenance can minimise impact. Pitting can also occur in salty air - this does not affect strength.