Thank you for viewing! This is a nostalgic [Soroban]! A long, long time ago, I used this when I went to a soroban (abacus) school near my parents' house, using one passed down from my older brother. After a long time, my son also used it a little when he was in elementary school. It has been stored at home since then. It has a sense of age, and there are scratches and stains, such as a name carved on the back! Before listing, I washed the whole thing with ionized water and carefully wiped it dry. The mist-like ionized water can also disinfect, so dust etc. has been removed. The beads move smoothly, but I think the smoothness is more suitable for beginners rather than advanced users. [Size] ~Approx.~ Length: 38.5 cm Height: 6.5 cm Thickness: 1.5 cm How about using the beads for educational purposes or brain training, or as a handmade product? I would be happy if someone would use it. It has some age to it, but I think it is a product carefully made from wood. Thank you. #Soroban #Retro #ManualCalculator #Toy #Children #Mathematics #Arithmetic #Numbers #BeadSoroban #Soroban #Learning #EducationalToy #Education #BrainTraining #HandmadeMaterials #WoodenProducts