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Construction:this math learing abacus has 10 beads per row and altogether 10 rows,100 beads in total. Safe material and colorful:this abacus has brightly healthy colored beads.The materials are healthy for human.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.