Midland Scientific Inc. Rubber Stopper with 2-hole, Size 12, 5/lb
Supplies and Accessories
The Midland Scientific Inc. size 12 rubber stopper with 2 holes seals the opening of a container when you need to shake its contents for an experiment.
The Midland Scientific Inc. size 12 rubber stopper with 2 pre-drilled holes can be inserted in a test tube to prevent the contents from spilling or evaporating. Available in black, it helps you store gases during a chemical reaction. This size 12 rubber stopper is durable enough to endure rigorous laboratory use without getting damaged. The cork's 2 holes allow you to add multiple accessories at the same time, allowing you to add chemicals, collect emitted gases, or check the temperature while an expe riment is in progress. The package includes 5 rubber stoppers.
Made of rubber in black
Contains two pre-drilled holes
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