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Measure, mix, or heat chemicals and liquids via a laboratory culture tube. Whether your lab needs glass test tubes or plastic test tubes, these tubes have caps to hold contents securely. This test tube selection features side gradations for measurements and comes in a variety of sizes to contain different volumes. We have an abundance of microbiology supplies for your lab or classroom. Our mixer accessories can assist with experiments and analyzing chemicals, while our additional holders include bottles jars and vials.