Go Master's Match Seven-Game Series fan. A commemorative item received at the local pre-match party. Yuta Iyama, Master Yu Zhang, 9-dan Calligraphy fan. I think it's a rare item that's no longer available. I haven't used it since I received it, but since it's from a while ago, please check the condition in the images. In the 6th image, there is a spot that looks like a stain, which was there originally.