For use with the Menstrual cup. Drop your menstrual cup into our Cup Cup add a splash of water and pop into the microwave for 3 minutes and you are good to go.Hey Girls Cup Cup steriliser is collapsible so it’s easy to take out and about or to store100% hypoallergenic medical silicone for maximum hygiene and confidenceVegan friendlyMade from collapsible silicone and holds up to 200ml of fluid.