The original parts were discontinued and I could not find the lock knob anywhere sold on its own. So, because I had one other knob broken, I searched for an entire set. I felt Lucky and apprehensive finding them on Appliance part pros because I had never heard of the company, but they did have them in stock. I ordered the parts, (kind of pricey, but hey, what’s not,it was the going rate) and shipping was great. I received it within a few days. Knobs are a little different from the original due to the originals being discontinued. But they still maintained the classy appeal. The fit was great, they seem sturdy even though some plastic was used for assembly. Im happy and i hope they last a long time. Thanks Appliance part pros!!