small fish teaching ruler set square compasses magnetic ruler set square protractor set mathematics teaching aids

multifunctional sucker compasses [can clip chalk]] [non-magnetic] 60cm ruler [non-magnetic] (1 m) ruler [non-magnetic] 50cm protractor [non-magnetic] 45 ° isosceles set square [non-magnetic] 60 ° right angle set square [non-magnetic] set square 2-piece set [non-magnetic] set square * 2 + protractor + 60cm ruler [four-piece set]] [non-magnetic] set square * 2 + protractor + 60cm ruler + compasses [five-piece set]] [magnetic suction] 45 ° isosceles set square [magnetic suction] 60 ° right angle set square [magnetic suction] 50cm protractor [magnetic] set square * 2 + protractor [three-piece set]]

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