I had to shorten the long adapters with a junior hacksaw for our Belling cooker. Otherwise, they fitted perfectly. Moreover, the cut ends were a much firmer fit in the knobs.

There was one drawback: The knobs didn't all sit in their correct, upright positions on the spindles. I've had this problem with this type of knob before. It took a bit of swapping around between adapters and knobs to get them more or less correct. This is a design flaw, and the reason that I can only give them four stars.