These cups are soft and super flexible so that they can be inserted into the vagina, unlike the pads and tampons, which cover a huge area and are breeding grounds for microbes.
The flexible menstrual cup is inserted by folding quite easily and efficiently into the vagina, where due to its design, it gains its shape again. Menstrual cups create a kind of vacuum/seal that does not let any fluid pass out, and it gets collected in the cup. The placement is fairly near the opening, unlike tampons that need placing even higher.
To remove the cup, all you need to do is push it down using your pelvic muscles and tug on to the stem to pull it out of your body. Empty and rinse it every time you take it out. You could empty it in the toilet or sink then rinse it with water before you reinsert it.
A menstrual cup is very durable because of the material they are made of, they can be used for several months without replacements, and you would never need another sanitary product. These menstrual cups are also environment-friendly while being menstruation friendly.