This is a **MUJI Cotton Mother and Child Health Handbook Case Refill (Small)**. It is a set of two, compatible with A6 size handbooks. In our home, we use it not only for mother and child health handbooks, but also for adult medicine notebooks and health insurance cards. It's thin and lightweight, making it easy to carry around, and very convenient to have one per person. It comes with a D-ring, so it's also recommended to attach keychains or other items to identify each family member's case. *Please note that this item is stored at home. If you are concerned about minor details, please refrain from purchasing. *We are sorry, but this item is not subject to price reduction. Please refrain from negotiating a price reduction.