To be used under sled chairs with a round tube on hard floors.* The Chairfixx consists of 1 part and does not have a separate protective foot.If the tube size is not listed, choose the next larger Chairfixx size.The difference can be filled with foam tape.Remove the pin from the Chairfixx by gently wiggling.The pin is 5/6 mm thick.The furniture will be raised by a maximum of 1 cm.Maintenance:The protective caps are easy to clean with a vacuum cleaner or brush. It is also possible to clean the caps with a damp cloth.The dirt can be removed and the carpet pile will recover.