What is the material of the rubber stopper?
StonyLab single hole rubber stoppers are made from premium natural rubber for excellent flexibility and durability.
What is the size of the hole in the rubber stopper?
Each rubber stopper has a 6 mm/0.24 in hole.
What experiments or applications are rubber stoppers suitable for?
StonyLab single hole rubber stoppers can be used to seal test tubes in the laboratory and can be effective in preventing leakage of liquids or samples.