Ideal product for 5/8 O/D chair legs. It's tight and not loose. The only problem I have is when pulling or pushing the chair it leaves black scratches on the floor. What I did to alleviate the problem was I bought a felt nail on sliders (18mm) and nailed them to the floor. Guides are here now. Works perfectly. None of the products were too expensive, so I had plenty left over to replace worn parts.