Digit Standard Abacus Soroban Professional 17 Column (10.2 inch) Math Abacus, Math Calculating Tool with Reset Button for Adults (Brown)

Great quality!

Better than normal product, means reset button for quick operation.

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Es una gran opción, ya que incluye el botón de borrado, el cual resulta muy util

Excelente SOROBAN japonês/abaco, fiquei surpreso pela qualidade e manuseio, sem dúvida nenhuma, trata-se de um produto de alta qualidade 🔝🔝🔝

I recieved the item today. It does not have the release button so be aware. I aimed for the release button, thus I'm going to return the product. Not what I needed. Otherwise it does the job. As I ordered it for the child, the release button is crucial. Will be ok for adults I believe or older children.

As I am new to using an abacus, I wanted something simple and affordable to learn on. This fits the bill. I wish we used these in american schools because it puts math to something tangible and easy to understand. it is well built for what it is, light weight, and the size is good for many common math problems.