Product review (2 stars): Cheesy
These are rather cheesy I'm afraid.  One of the knobs was molded with a divot on one side so the metal indicator plate won't seat down all the way.  As well, 2 of the adaptors which go on the stove valve stem (so the knobs will fit) had plastic left inside the channel (more cheesy molding) so I had to get out my crafting knives and do some surgery.  After a bit of digging and carving they finally slid over the valve stems.  Then after putting the knobs on, they don't fit snugly on the adaptors and tend to fall off when you touch them....so I got out the Shoo Goo and glopped up the adaptors in the hope the knobs would stay.  So far that hack is working.  They don't look too bad once they're on there it's just getting them to function that's the problem.  On the good side, the metal plates can be rotated around the face of the knobs to indicate where you want the "off" to be, and the oven knob has 2 temperature plates which are both different (depending on which way your oven knob turns).