Please read the profile before purchasing. Thank you for viewing. Tomoe Soroban (with checkered case) 23 digits No. 43300 Color: Brown Material: Birch beads An abacus loved by many people. Made with the finest materials and traditional techniques, it is a standard widely used in schools and workplaces. It is very easy to use and can be used for long periods of time. The upper frame has a triangular ruler, which is convenient for drawing lines. ★Good quality items are not comparable to cheap ones. Cheap ones are a waste of money (lol) All photos are included. Please check the photos carefully before considering. Even if it is new and unused, it is stored at a private residence, so please refrain from purchasing if you are nervous or seeking perfection. ★You can buy it immediately without comment... *For the purpose of preventing trouble, I keep the packing photos. Thank you.