Ball calculations up to set of genuine product abacus, 20, 4, H2M86886,

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We are selling from Japan. Our Products are Authentic only.

★★★★★★★★★★★ Learning Resources' Tama Soroban is loved in over 80 countries around the world. It is an arithmetic teaching material that teaches the concept of carryover and carryover. This bead abacus allows you to visually understand calculations from up to 10 to carry calculations up to 20. It is a convenient size that can be used to help children get a head start on math when they enter elementary school. Package size: Approx. 15.5cm wide x 9.8cm high x 8.2cm deep Body size: Approx. 15cm wide x 7.5cm high x 2.3cm deep Ages: 5 and up