Rubber Stopper Size #13 - 1 hole
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Rubber test tube stoppers suitable for Glass or Plastic Test Tubes and Erlenmeyer Flasks. These long lasting stoppers are made from excellent grade rubber, with a low sulfur content. Contains 1 Size 13 stopper, 1 Hole.
|Material||Chemical Resistant Rubber|
|# of Holes||1|
Not sure what size stopper to use? See our handy Rubber Stopper Size Chart for help
|Age Group||5-6 Years, 7-8 Years, 9-10 Years, 11-12 Years, 12+ Years|