Rubber bungs for test tubes x 5
How might I use these?
Great for forming a tight "lid" on test tubes. Makes an airtight seal to prevent contamination if you want to prevent gases entering. Also reduces the risk of spills when working with young children!
To fit 13mm test tubes (as sold in the Laboratory Starter Set)
Base measures 13mm, top 16mm, length 24mm
Five solid rubber bungs
What goes well with these?
Wash in hot soapy water. Store dry.
If your experiment produces gas you may want to allow the gas to escape! (Unless you want to see how far you can launch the rubber bung, in which case Safety specs may be a good idea)!!
Free shipping if your order total is over £12
(£3.50 shipping if your order total is under £12, UK only)
No additional VAT, it's already included