Set of 3 calligraphy brushes. Comes in a box, unused. Please refer to the photos for the condition. As they have been stored for a while, it's best to consider them as used, even though they are unused. I am not knowledgeable about this, so I may not be able to answer specialized questions. Thank you for your understanding. I am selling these to declutter my house. If I don't make progress with the decluttering, I will remove the listing after a certain period.