This is a glass pen nib set from Kobunsha. There are 19 nibs. They come with a box. The box is labeled as "medium," but it looks like there are some nibs of different sizes mixed in, so please be aware that there may be a variety of sizes. I have not used these myself, so please check the images to assess their condition. These are items from a personal collection, and due to the nature of old products, please refrain from purchasing if you are concerned about minor details. I will not sell these individually or offer a discount.