【 Gakken 100-Ball Abacus Educational Toy Wooden Toy 】 This is a 100-ball abacus from Gakken. Wooden series Counting, comparing, subtraction, addition It's colorful and made of wood with a gentle feel to the balls. It's an item that allows children to learn with peace of mind while playing, when they first encounter numbers. This is an auction for the main unit only. Please be sure to read my self-introduction before bidding. (^_^)