Bought them to support 400lb cnc. Used on a sleep number adjustable base. We move the controller around every once in a while, and it's extremely heavy.
Installation is fairly straightforward and the instructions gives two recommended methods. This is not so noticeable once the chair is set back up. They are hardly noticeable and protect my new floors. Glide smoothly on the floor and stay on place.
Unreliable Reviews. Do more research before proceeding
Mostly unreliable reviews. Do more research before proceeding