This product uses designs such as donuts and flowers for the punch hole reinforcement sticker "One Patch Stamp" that the company is selling. It can be used not only for business scenes but also for decorations such as notebooks, notebooks, and wrapping.
There are four types of stickers, "Heart", "Flower", "Donut", and "Character". The main unit price is 550 yen, and the refill sticker is 320 yen (both tax excluded). The seal is simply passed through the shaft inside the holder, so it can be easily replaced.