Bodyotics reusable menstrual disc market-leading multi-size set s & l for all menstrual flows, includes 2 pouches 12h wear, up to 10-year lifespan beige & pink how to use: menstrual disc sits in the widest part of your vagina to fit inside the vaginal fornix, covering the cervix, and preventing menstrual fluid from entering the vagina. The disc collects blood instead of absorbing it and wont disrupt the ph balance like the other products. It can hold as much as 3 super tampons. Bodyotics reusable menstrual disc set