Product review (3 stars): Need to ADD GLUE to this project.
These work, but they do need a bit of tlc. First of all you'll need some glue. Once you have the colored adapter on your stove add some strong glue to it. I prefer the strong kind that takes 12 hours to set so you can adjust it as you'll want the dial set just right.
I have the type of stove that you push in on the knob to turn. So some of the knobs slid in too far and thus couldn't push in on knob to turn. I solved this problem by stuffing small rolls of aluminum foil into the hole until the housing was filled enough to keep from sliding to far in when being pressed in to turn the knob. Hope this helps.