The Diaphragm is a dome-shaped piece of latex or silicone that goes into the vagina and over the cervix. The Cap is a smaller version that needs to be put directly onto the cervix and is only made of silicone.
They both need to be paired up with spermicide and stop the sperm from entering the womb and are only used when you have sex.
Did you know? you can leave them in for up to 6 hours!