Retail price: ¥24,750 Heritage Coachman Jacket, black. Size: Micro 5. Ring diameter: 13mm. Square back, opens flat 180 degrees. The cute, compact form resembles a dictionary. I only tried inserting refills, so it's in very good condition, as new. I discarded the box, so I will sell the binder itself only. *For search* PLOTTER Davinci Filofax FILOFAX ASHFORD Ashford Davinci KNOX Knox PLOTTER Plotter Takechiyo-san also uses it!