I just ran out and looked at my chair. It has a black plastic ring, like Bob said, on the floor that runs through six ball bearing clamps which are attached to a wood base ring. We have never seen any scratch marks on the floor from sliding the chair. But we have the older fake stone look floor, not the wood look. I would guess one could remove the plastic ring and clamps in a couple of minutes. Then get six wheels and install them into the wood ring. One would still have to tie down the chair for travel.
