Popular one-touch! This is a Soroban (abacus) from Unshu Soroban Tama-jirushi Solo Mat. It's easy to use as it's a standard 23-digit abacus(^^) As you can see in the photo, the edge of the vinyl case containing the abacus is slightly chipped. It's a high-quality abacus with birch beads and the maker's name carved inside, so please take a look ☆ ※ I'm also selling a case separately ♬