invacare door knob
Great item, better than expected, snug fit (use water to place on knob) Works on all my door knobs (round).  Easy on the hands, even when your hands are wet, soapy or have oil on them.  I also put them on the outside knobs as they are silicone and will withstand the sun here in Fl.  The price is low and well worth more than was paid.
Rating: 5 stars