Description
This rubber stopper has a diameter of 16mm. The stopper is made from durable rubber, and can be used with strong chemicals, such as acids, alkalies, and ammonia. It is used to seal test tubes and keep the contents safe, and has a hole in the centre.
Dimensions
2 cm diameter x 2.5 cm height ( ¾” x 1″ )
Related Products
- every science classroom needs a Test Tube Rack – 16 mm
- keep safe around hot materials with the Crucible Tongs 20 cm
Further Reading and References
- read Greg McDonald’s blog on Safe Science in Montessori Elementary
- learn more about the Montessori Science Curriculum
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