I purchased this at the EX-VISIONS by pixiv exhibition held at the Seibu Department Store Ikebukuro Main Store 6 years ago. This is acrylic plate ① by Mai Yoneyama, a limited edition item from the event. The size is 140 x 200mm (with a stand). I went on a shopping spree at the venue, but due to space and financial constraints, I've decided to part with everything except the original artwork, so I'm reluctantly selling these items, all of which are new and unopened. Thank you for your interest.