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Simple and sturdy test tube rack for standard or conical test tubes. It holds 14 test tubes with a diameter of 16 mm. The lower support holes are 13 mm in diameter, which helps keep the tubes stable. Each position is labeled with its own…
Cute and easy to print vibrating bug! NO soldering needed NO wire twisting. Designed to last and cheap to make. You'll need: 10x3 mm coin vibrating 3V motor CR2032 battery glue toothpick wire strippers/stripping tool How to assemble: Take…
Simple, sturdy, and stackable test tube rack for 14 mm, 16 mm, or 18 mm test tubes. The rack holds 14 test tubes, and each position is labeled with a unique identifier (1A–7A, 1B–7B), making it easy for students or lab users to identify…
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