Formoonsa collapsible sterilizer can fit any menstrual cup or disc. Simply add water until your product is mostly covered, cover with the lid, vent lid slightly, and microwave. Or, use an electric kettle and pour hot water into the cup and shake. Aim for 2-3 minutes.
For regular washing on the go add water to the sterilizer before entering your bathroom stall, insert the cup or disc, shake to clean, then pour the dirty water into the toilet and rinse for storage in the sink.
Menstrual cup/disc not included.