This is a hand-stitched, genuine leather business card/card holder for an M5 system planner. The main body is made of Tochigi Leather in dark green, and the pockets are made of Tochigi Leather in black, hand-stitched with dark green Vinymo thread. The edges have been burnished with Tokonole. To ensure that the binding holes are not covered even when cards or business cards are inserted, the holder is about 8mm wider than the M5 refill. While it shouldn't stick out from the planner cover, please confirm the dimensions before purchasing. ※This item is also listed on other sites. Please be aware that your order may be canceled if it sells out quickly on another site.