About 5 years ago my mother in law was watching our home while we were on vacation. She used our gas stove and was unaware that the knobs needed to be pushed in before they could be turned. Well after she broke two of them she just decided not to use the stove. we had been using some from Lowes that did't work well. not an exact fit and sometimes did not shut off the gas (explosion) I found these online for cheap and they arrived in 2 days. They are also an exact fit. two thumbs up for appliance parts pros. jeff in Brooklyn