【Product Overview】 This is the "Solo Mat" one-touch abacus from the long-established manufacturer, Gyokusando Kogyo Co., Ltd. It's a convenient one-touch type that allows you to reset (clear) with a single button, making it extremely useful in situations where every 0.1 second counts, such as certification exams and competitions. 【Product Condition】 • Manufacturer: Gyokusando (Tama-jirushi) • Type: 23 digits / One-touch ※ The one-touch button moves smoothly. • Engraving: The name "Naoyuki Fukui" is engraved on the side. • Appearance: It has been used with care, and the beads move smoothly. Commemorative stickers for passing exams (Grade 7, Grade 6, Grade 4, 100th Anniversary, etc.) are affixed to the side. • Accessories: Comes with a dedicated hard case (with instructions inside) 【Recommended Points】 It uses high-quality traditional wood (such as birch beads), providing a very comfortable feel for the fingers. It's perfect for children who are about to attend abacus classes or those who are taking certification exams. ※ Please understand that this is a used item and has been stored at home before purchasing. #Abacus #Soroban #Gyokusando #SoloMat #OneTouchAbacus #23Digits #MentalArithmetic #MentalCalculation #Certification #CalculationTools #OfficeSupplies #ShowaRetro #LearningSupplies #ExtracurricularActivities #EducationalToys #Stationery