All stainless steel, well made, study and stable. Five out of five for the product!My only gripe is that it took almost two hours to unpack and put together. Constuction was simple and easy to work out as the instructions are very basic, but the wheel units were packed into the underside of the table top with the screws jammed into a hole in the frame. It took ages to fiddle them out at the cost of two cut fingers and scraped knuckles. Secondly my favourite gripe with steel products - the table top was clad with a protective film, now some are easy peel....this one was not it took over an hour to peel most of the film off in little 1cm shards. OK this is a trade product but even more important that time should not be wasted unnecessarily.Two out of five for the packing and presentation.