This item is originally priced at 7,560 yen. The brush head diameter is approximately 1cm to 1.1cm. The brush head length is approximately 5.7cm, so I believe it is a size 4-5. This is a new, unused item. Regarding the condition, there are traces of the price sticker having been removed, so please understand this. There are also multiple items available. Please inquire if interested. I have many other items for sale, so please take a look. Bulk purchases are also welcome. #Calligraphy #InkPainting #JapanesePainting #Brush #Nisseido