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About product and suppliers:
        Alibaba.com offers 189 big abacus products. About 14% of these are math toys, 7% are other toys & hobbies, and 5% are educational equipment. 

A wide variety of big abacus options are available to you, such as free samples. 

There are 122 big abacus suppliers, mainly located in Asia. The top supplying countries or regions are China, India, and Hong Kong S.A.R., which supply 89%, 4%, and 3% of big abacus respectively. 

Big abacus products are most popular in North America, Southeast Asia, and Central America. 

You can ensure product safety by selecting from certified suppliers, including 18 with Other, 16 with ISO9001, and 13 with FSC certification.