Includes 14 sessions. Regular price: 700 yen This price includes shipping! The layout is the same as the real thing. Due to copyright law, discounts on abacus materials are not allowed. Even if you purchase multiple items, the price will not be less than the regular price. It's a large size, so it will be lightly folded in half and shipped via anonymous delivery, using the "Nekoposu" service. ⭐️ You can practice up to the 10th dan of mental calculation, so we recommend copying it for personal use at home. #Soronyan Abacus Materials ← You can see all the abacus materials here. Please read the profile carefully! Read carefully! Read carefully! Then, if you have no questions or need to combine orders, please purchase without commenting. Right brain activation Anti-aging Concentration Perseverance