Flow Menstrual cups are made from 100% Medical-grade silicone that are latex, BPA and plastic free. The reusable cup is specially moulded to be inserted and sit comfortably within the vagina. When inserted correctly the silicone cup will create a seal around the vaginal wall ensuring a leak proof experience. The menstrual cup has the ability to hold two tampons worth of discharge and are designed to last up to eight (8) hours at a time.