AON MENSTRUAL CUP is USFDA approved and made of medical grade silicone. It is worn internally to collect menstrual blood for up to 8 hours. Being toxin-free and allergy-free, it doesn’t cause rashes and itchiness, unlike pads. It is soft and flexible,and doesn’t allow any leakage as it creates a vacuum seal against the vaginal walls. It is reusableand lasts for up to 10 years, when maintained properly, making it the most economical andsustainable choice for you and the environment.