Handmade M5 Size System Planner Simple Tochigi Leather I'm selling off some stock I had for myself. This is a self-made M5 size binder (system planner). The size is approximately 130 x 190mm when open, and the hardware is 15mm, so you can hold plenty of paper. *The leather used is 2mm thick natural nubuck leather, precisely cut and lightly polished with mink oil and Tokonole. There are scratches, marks, and some dirt inherent to leather; for those who can appreciate it as character. *A simple protective part made from cut clear file is attached to prevent ring marks on the binder. (Protective part is removable) *The binder hardware is screw-on, so it can be removed with a screwdriver. *A self-made lifter is included. *Because it's thick leather, it may be stiff at first. Please try using a rubber band or other methods to help it open.