Periods are made easy with this menstrual cup! Reusable, flexible menstrual cup with stem (length 1.6 cm) that can be pressed together and inserted into the vagina during menstruation. it can stay inside the body for up to 12 hours and it collects the blood. the menstrual cup returns to its original shape once it's inside the body. the cup can't be felt once it's inside, it stays in front of the cervix without slipping and it doesn't spill any liquid either. measurements: small 16 ml capacity. length 4.6 cm (without stem), ø max. 4 cm. large 22 ml capacity. length 5.1 cm (without stem), ø max. 4.5 cm. medical silicone. includes a storage bag.