【Comes with a dedicated case☆】 Popular one-touch! This is a Soroban (abacus) from Unshu Soroban Tama-jirushi Solo Mat. It has 23 digits, a common size, making it easy to use(^^) As you can see in the photo, the vinyl part of the case shows some wear. Made with birch beads, and a high-quality Soroban with the maker's name carved inside. Definitely recommended☆