Used Mitsubishi brush pen kit, likely KFK501. The ink seems to flow, but the fine brush tip may be difficult to use. Please consider purchasing if you are interested. Please understand that this is a personal item. There is age-related deterioration and dust. I have performed a simple cleaning with a dry cloth, but there may still be some dust and dirt remaining. It might be a good deal for those who don't mind. It will be packed in plastic/cushioning material/paper (reused materials may be used) and shipped in a homemade envelope/box. I may secure the item inside the box and fill it with cushioning material/paper. Although I will take great care, as there is only one item, I cannot be held responsible for any damage during shipping. I kindly ask for your understanding. This item is exclusively listed on Mercari. If you are interested, please search for the product name on Mercari. I generally do not accept price reductions. Other points to understand are the same as for my other items. Thank you for your consideration. Management number: 01-5026 #MitsubishiPencil