Choose the odd pair out.
Female condom - uterus
The female condom is a soft, loose-fitting polyurethane sheath. One end has a barrier that fits over the cervix. The other end is a open ring that stays just outside the vagina. They look a bit like upside down plastic bags, which are inserted with the blind end directed inwards. They provide a barrier, preventing the sperm ejaculated into the vagina, from travelling farther into the female genital tract.