Product review (4 stars): Great for our old GE!
I live in a rental with a very old GE gas range. The oven knob was missing numbers but still usable until I took it off to clean it. I ended up with no numbers at all so I ordered these to replace them all (no need to have mismatched knobs no matter how old the range.) anyway it took some figuring out to get the knobs lined up properly and I had to use the grey insert for some and the black insert for others but they fit and they work. And that's all that really matters to me. To get them lined up I put the insert on partially then put the knob on, pulled them off together then pushed the insert in as fr as it would go, and presto they are lined up perfectly.