Furnigear Furniture Glides Sliders- PTFE (Teflon) Chair Leg Movers Sliders for Carpet and Hardwood Surface - Move Your Furniture Easy & Safely - Best Floor Protector 3/4''Screw Grey 43398-23143

These work well, stay firmly affixed to furniture legs, slide nicely on ceramic tile flooring without maring it. Have bought these a 2nd time, the only ones I will use now

Fit well and installed quickly and easily.

The screws are counter sunk type and do not match the flat mating surface. Since they are not visible it wasn’t a big deal just poor quality control.

My problem: sliding my wood chairs over my wood floors was noisy. I hoped these "glides" would make them slide quietly. No such luck. A chair with these is just as noisy. I expected the gray material to be soft and slick, but as best I can tell it's just another kind of hard plastic. I'm throwing them out and will buy something else.

Had to sand down the angled bottoms of my chair legs to fit properly.