This is a knob designed to go on a D-shaped shaft and replace the one that got broken on your oven or hob. The central handle is a symmetrical semicircular arch. Obviously, you can put it on anything with a 6.25mm shaft if you want. The indicator notch is in line with the flat on the shaft (typically where on/off points to).
Needs to be printed with support, and preferably using something with a higher melting point than regular PLA.
The author marked this model as their own original creation.