Product review (5 stars): Works better than the original
The glass lid cover knob came loose and actually fell apart on my old lid.  I've tried several other knobs before purchasing this one and none of them lasted but a week or two.  I use my glass lid almost every time I cook. Since it's been installed, it has worked
beautifully.  It has been on my lid for over 6 months and have had no problems at all with it.