Der blinde Abakus professionelle mathematische Konzepte blind Abakus Lernwerkzeug
17,07 €
Feature: 1. Main Function: Abacus for the Blind perfect for teaching children and for adults to do quick calculations. Item Type: Abacus for The Blind. If you are satisfied with our service, pls. Fine Production: Design of rounded corners, no sharp corners, will not scratch the hands, and it is safer to use.
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