The stickers are fountain pen friendly, which is great because I only use FPs in my bullet journal. There was some slight smearing when I smoothed the Small sticker onto the sheet because I wrote on the sticker before sticking it in the notebook. It is the same paper that is in the Midori MD notebooks (but not MD Cotton), which means it is cream-colored and not white. The paper is fairly smooth but slightly toothier than Tomoe River. It was nice to write on and I didn’t have issues with the few FPs I used on them.
Overall, aside from the not-super-easy peeling and the resulting curling of the sticker, I liked the convenience of having the monthly sticker for my undated notebook. I used to print out monthly calendars and tape them to my bujo and now I don’t have to. I also liked that there are stickers for 14 months. I think the only thing I could do without is the holiday text since it isn’t useful for non-Japanese customers and it takes up room in an already limited space. I don’t know if I would use the yearly stickers but it’s nice to have for reference.
You can find the Midori Diary Sticker Small 2025, Midori Diary Sticker Large, as well as the day free/undated Midori Diary Sticker (same size as the Small), on the Vanness website. The Medium Diary Stickers have been ordered but are still making their way to the shop, so that’s what I’m going to be ordering when it arrives in the next week or so.
(Disclaimer: The Midori Diary Stickers were provided for review by Vanness Pens at no charge. The notebooks pictured are my own.)