- Brand: KOKUYO - Product Name: Otona no Yaruki Pen (Adult Motivation Pen) [New & Unused] I purchased this as a gift, but the recipient already had the same item, so I am selling it unused. Since it is unopened and unused, I have not tested its functionality. Please purchase only if you understand the condition. As a waterproof measure, I will put it in an OPP bag and protect it with bubble wrap, then pack it in a cardboard box for shipping. I cannot accommodate specific shipping date requests, but I will strive for prompt and careful service. #StudyGoods #StudyManagement #Motivation #CertificationStudy #EntranceExamStudy #AdultStudy Thank you for viewing.