Cotton/Maternal and Child Health Handbook Case Refill MUJI "Cotton Maternal and Child Health Handbook Case Refill Small" Brand new, unused. Stored at home. The following is quoted from the HP: You can organize your maternal and child health handbook, medical examination cards, etc. Comes with a D-ring that can be used to mark each refill. There are 4 card pockets, and they are vertically oriented for easy access. External size: Approximately 18x13cm (Internal size: Approximately 16x10.5cm. Depending on the amount and thickness of the contents, the size indicated in the internal dimensions may not fit.) Thank you.