Thank you for viewing. I will be unavailable from September 17th to 20th, so I will be unable to ship items during that time. Shipping will resume on the 21st or later, so please be aware of this before purchasing. 13-digit plastic mini abacus The manufacturer is unknown, but it says "JAPAN SHOWA" on the back. It's lightweight and compact, so it can be used for children's learning. Width: 16.5cm Height: 5.2cm Depth: 1.0cm *Please note that there may be slight variations due to amateur measurements. My child took this to elementary school math class several times. After that, it was stored at home without being used. I would appreciate it if you could understand this. I will ship via Yu-Packet Post Mini.