"The Mooncup is a reusable menstrual cup, around two inches long and made from soft medical grade silicone. It is worn internally a lot lower than a tampon but, while tampons and pads absorb menstrual fluid, the Mooncup collects it. This means it doesn’t cause dryness or irritation, and also that it collects far more (three times as much as a tampon!). Because the Mooncup is reusable, you only need one so it saves you money and helps the environment, too." Mooncup site.