Very sturdy granite table which can swivel up to higher heights or swivel down to lower.
55cm (21.5 inches) circumference. About 2 inches deep.
I think this is a very unique piece.
Some edges on the bottom of granite are rough - my guess is that it likely fell over at some point in its life and chipped. But personally I have always thought it adds to the character. I bought it that way and it has never bothered me.