Product review (4 stars): Really worth the try, but don't fit my Frigidaire range
These seem to be a terrific deal, but they do not fit my beloved ten-year-old Frigidaire dual-fuel (propane & electric) five burner range. The range's burner posts are half-moon shaped but larger than ERP knobs will handle. The ERP knobs were not expensive though, and I don't mind the purchase at all - it was worth a try. I also was interested in their smaller size as this range had its burner knobs flat on the range's glass surface where a 6th burner otherwise might have gone. The size of the original knobs is big enough to make them hard to clean around in the usual dishwashing wipe-up. So, I was disappointed.

Still, I'm glad I tried. With OEM replacement knobs running about $45 each (which seems like blatant robbery to me), it was worth checking. Rather than return the ERP knobs, I gave them to a friend who does small repairs and he was happy to get them - said they'd come in handy.