MeLuna is made from TPE. This material is used also for the production of baby bottle teats. Menstrual cups produced from TPE rubber don't have the 6 months satisfaction guarantee.
Size S:
Cup diameter: 40 mm, length 40 mm (add 6 mm for ball style, or 8 mm for the ring style)
Cup volume: 10 ml up to the holes, 15 ml up to the top
Size M:
Cup diameter: 45 mm, length 45 mm (add 7 mm for ball style, or 10 mm for the ring style)
Cup volume: 15 ml up to the holes, 21 ml up to the top
Size L:
Cup diameter 45 mm, length 54 mm (add 8 mm for ball style, or 14 mm for the ring)
Cup volume: 24 ml up to the holes, 32 ml up to the top