Handmade Mini 6-Size System Planner Simple Nume Leather This is a self-made mini 6-size binder (system planner). The size when opened is approximately 220 x 1150mm, and the hardware is 15mm, so you can hold plenty of paper. * Uses 2mm thick black nume leather, which is thick and very sturdy. It is supple, but it may be stiff to open when you first start using it. Please try using a rubber band or other methods. It has been cut accurately and lightly polished with Tokonole. * There are some scratches and marks unique to leather, for those who can enjoy them as a characteristic. * A simple protective part has been attached by cutting a clear file to prevent ring marks on the binder. (The protective part is removable) * The binder hardware is screwed in, so it can be removed with a screwdriver.