Product review (1 stars): very poor design
comes with 2 sets of adapters, but neither have a mechanism to stop the knob from sliding down too far, making it impossible to push down the knob to turn it as on most gas ranges.  also, the holes are not centered, so if you do manage to turn it, it follows a lopsided rotation.  smaller diameter than standard knob.  did not include extra overlays as advertised, only one set.  this product barely belongs in the dollar store!