Product review (3 stars): So-So kit, but saved me in a pinch.
I bought a house a couple of years ago that came with a 20 year old electric cooktop with no knobs.  This was the only kit I could find that would definitely fit the stove and for that I was grateful to get these knobs.  The adapters fit my stove with no problem, but I found that the knobs did not fit well on the adapters.  Also, my style of stove knob requires that the knob be pushed down prior to turning from off to on, and these knobs often failed to make contact with the post.

The knobs look alright, nothing too fancy.  I removed the silver indicator ribbons from the knobs because my stove top has the numbers printed on the surface.  I used some whiteout to mark the knob so that I would be able to tell what position the the knob was set to.  Overall I would say it looks just ok, but this is a temporary solution until I install the new gas range I have to replace my current setup.

My first set of these lasted about 1 year, then all of the knobs either became stripped or cracked.  I ordered a new set a few weeks ago and this time I did two things to modify the knobs to work better for my purposes.  I used putty to build up the tops of the adapters, so that the knobs would engage the posts when pushed down, and I also superglued the knobs to the adapters so that they wouldn't become stripped.  So far this seems to have been a good solution.