Designed with a patented pull-tab, Flex Cup™ was made with beginners in mind and is incredibly easy to use and remove. Flex Cup™ Benefits 12 hour wear Patented pull-tab removes like a tampon Made for beginners Zero-waste product High Cervix friendly Adjustable length stem Your Purchase Includes: One Flex Cup™, a breathable drawstring pouch, and user instructions. Who is the Flex Cup™ Good For?  Size 01 Capacity of 2 super tampons (22mL) For first-time menstrual cup users and pros with light or heavy flows Size 02 Capacity of 3 super tampons (30mL) For experienced menstrual cup users who prefer a larger size and those who've had a full term pregnancy   Flex Cup Dimensions Size 01 Length Diameter Volume 46mm 43mm 22ml Size 02 Length Diameter Volume 53mm 46mm 30ml Measurements do not include stem length. Stem will add an additional 18 mm of length to each cup and the stem is adjustable for a custom length. You can sort cups and discs by measurement on the Period Nirvana Menstrual Cup Chart. HSA/FSA Eligible This product is eligible for purchase using your HSA/FSA card or for reimbursement with your HSA/FSA plan under the CARES Act. See our FAQ for more on how to purchase your menstrual products with HSA/FSA.