Pee Safe Menstrual cups are one of the most economical yet effective menstrual products so far. The cup is made of medical grade silicone and is supposed to be inserted into your vagina. It can collect up to 16ml of blood and it doesn’t leak out. On average, we bleed just about 20 ml a day but never forget the thumb rule with any period products; keep a check every 4-5 hours. Extra Small size is recommended for girls under the age of 18 years, and its special design: the oval handle is more convenient for customers to take out menstrual cups.