I find these Fix-O-Moll parquet glides with screw 5 mm / Ø 24 mm 16 x super, just drill a small hole and insert the screw, super.
Does not plant well in the feet The "nail" bends too quickly Unsatisfactory
Not only top in terms of price, but also in terms of design. They are the best I have found so far. I have now fitted 10 chairs with them.
Fulfills its purpose and does not wear out so quickly due to its hardness
Rather hard felt, should be a little softer