The replacement knob for the salad spinner from GIES is more robustly designed and has been holding up well for over 5 years of frequent use. Installation is easy since you only need to snap it in place.

It fits e.g. this model: https://gies.de/produkt/greenline-salatschleuder-5-l/

I recommend to print it in PETG with 4 perimeters.