Set of 6 test tubes with 28mm internal diameter with flat bottom so that it can stand on a table. Made of strong hard ( almost unbreakable) plastic. they come with almost air-tight sturdy plastic cap. The rack is almost unique, designed by us, it is easily assembled and dismantled for easy storage.
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Tags: Junior Chemistry, Science, Discovery, Experiments, Science-Lab, Hands-On, Junior Scientist, Junior Chemistry, Pre-school, early childhood, Science, Learning Store, test-tube, test-tube-rack,