Medical-grade silicone sanitary cup for beginners. - Product Name: Full Moon Girl Sanitary Cup - Generic Name: Menstrual Tampon - Size: Diameter 30mm, Height 55mm, Size S - Material: Medical-grade silicone - Quantity: 1 - Target Audience: Beginners, Size S - Medical Device Classification: General Medical Device - Expiration Date: 10 years - Regular Price: 5710 yen Please note that the item has been opened once. It is a completely new and unused item. The box is torn. Please check the photos. Comes with a storage pouch. Recommended for those new to menstrual cups. I previously purchased a set of S and M sizes, and the M size was sufficient, so I am selling the unused S size. Thank you for looking.