ds 4 Very heavy duty plexiglass and feet make this unit more stable than most I have seen popping up everywhere these days. The only drawback to these stable feet is their size: See the photo. I have two panels down the middle of the table and a third panel between them creating seating space for four people. All those feet are kind of in the way and make the table feel crowded. Still, they're heavy enough that casual bumping doesn't move them out of position and hopefully I won't have to use them for too much longer!