FLEXIBILITY 5 Size S: Women who have not given birth through natural birth. Size L: Women who have given birth due to natural birth. The menstrual cup is a container made of surgical silicone that is inserted into the vagina (just like a tampon) during menstruation, adapting to the vaginal walls of each woman at all times, without having to worry about it moving. The cup collects menstrual flow inside and can be worn for up to 12 hours inside without having to worry. It is cheaper to use than other disposable products, since with proper maintenance it can last up to 10 years and its cost is amortized in two months. When the cycle ends, simply sterilize it with boiling water in a menstrual cup sterilizer or saucepan and store it in your bag until the next menstruation.