What the heck is that thing?


On page 55 of the April issue of Stereophile there is an ad for Canton Vento speakers. On the floor in front of the speaker there is a large round object. Anyone know what this is?
skipperrik
It appears to be the top of a coffee or end table. The photo has foreshortened the perspective so it looks like it is on the floor. On the other hand, it may be the space ship that Mike Fremer flew in on.
Given its size and location, I assumed it is the seat of the chair/stool for the piano player.