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Ships within 48 hours · Estimated delivery Oct 31 - Nov 5
original colors with non-toxic paint and varnish
the abacus offers a guaranteed benefit for any child who uses it
Tokyo mathematicians developed the modern soroban by designing a new frame and adding beads
Size (assembled upright) 22 cm (height) 22
Perfect for enhancing your concentration and mental calculation skills
Boulier chinois - 13 rangées - Jaune Boulier-chinois original colors with non-toxic paintFeatures Size: 9. 5 x 25 cm 13 rows Made from high quality, non toxic ABS plastic Designed specifically for use by children
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