Trusted for over 18 years!The Keeper Menstrual Cup is a great alternative to tampons. This soft, natural gum rubber menstrual cup collects the flow rather than absorbing it, so the vaginal tissues aren't dried out as they can be by disposable tampons. The Keeper Cup holds up to an ounce of fluid and should be emptied several times a day; simply rinse and reinsert. Detailed instructions come with your order. The Keeper menstrual cup is not recommended for those with latex allergies. If you want a latex free cup, please check out the Moon Cup . The Keeper can last up to ten years, saving you over $800 in disposable products!The Keeper comes with a 3-month money-back guarantee with your GladRags receipt.Size A is for after vaginal childbirthSize B is for women who have not delivered a baby vaginallyWhile The Keeper is better for your health, the environment and your pocketbook, the feedback we get most often is that The Keeper is just plain more comfortable and convenient than tampons and disposable pads. Below are a few of the many advantages we hear about from happy Keeper users. The Keeper is the most convenient form of menstrual protection, because it won't leak, is great for active lifestyles, and doesn't require you to carry around bulky menstrual products. The Keeper is healthier and more comfortable for your body -- no risk of Toxic Shock Syndrome or harmful chemicals, no bulky messy pads to deal with, and perhaps fewer cramps and a shorter cycle. The Keeper is better for the environment as it reduces waste and is manufactured in a sustainable manner. The Keeper will save you money, time and trips to the store!