These  came in from a friend of mine they are really very very bright knobs in different colours and styles I have a ton of the Pink ones. I think they was from a Topaz or some other bright mixer at the time.

I can do a deal if you need a qty of the pink ones (40£ per 100)

They are very good quality and in two styles that I can see

The smaller one is a two shot moulding 17.39 mm high 12.16mm wide at widest part

The larger knob is also a two shot moulding total height 23.47mm high 12mm wide these knobs seem to be have a skirt on so were set into the mixer a little so it would need a longer shaft. At a guess they probably had some internal board that sat behind the main board tha was recessed for the bigger pots , and some directly on the panel for the smaller pots, the small ones fit a standard 10mmhigh 6mm d pot shaft the bigger ones do not so probably 15/20mm high

both are 6mm D type sockets

Could make a really "WOW THATS BRIGHT" project

ask for postage discount or faster shipping