I ordered 3 of these handle sets AND JUST FOUR MONTHS LATER 3 of the glass knobs have come off their metal shafts.  They literally came off in my hand in normal use.  The glue used to hold the glass knobs in place is either defective or not applied correctly.  I was able to epoxy 2 of the knobs back on, but one broke on my bathroom floor when it came off and must be replaced entirely.  Now I am stuck deciding whether to order another set of $60 knobs I know to be defective to match the sets I have, or install a mismatched knob set.   Wayfair's 30 day defect policy has obviously expired, so I am SOL.