Excavated from our garden years ago, we used this as a base for a statue, etc., in our yard. It must be almost as old as our house (110+ years). Made of cement, it measures about 30" across and nearly 1 foot thick. The underside is flat and looks like a large rock, so you could turn it over, if you like. Extraordinarily heavy. You would need a dolly and a trailer to move it.