> Is it made of Aluminum or other expansive metal? There are few metals as cheap as aluminium, actually I cannot think of any except iron. Bulk aluminium cost

> Is it made of Aluminum or other expansive metal? There are few metals as cheap as aluminium, actually I cannot think of any except iron. Bulk aluminium costs less than $1/pound. Of course if the legs were not hollow, they might be rather heavy (even though aluminium is quite a light metal)