Show your inner geek with this miniature test tube necklace. All lined up and ready to use, these little test tubes are waiting in a wooden rack.
There is a choice of 'open end up', with the glass tubes secured in place with the open ends upwards, or 'open end down', with the glass tubes secured in place with the open ends down, as they would be stored in the laboratory.
Just Chemistry Necklace Science Geek Test Tube
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