- Made of high quality Borosilicate glass
- Hollow stopper made of high quality, heavy duty 3.3 borosilicate glass
- Hexagonal top and Round End
- 10/19 cone size
- Perfect for any science or home laboratory
Hollow stopper made of high quality, 3.3 borosilicate glass. Stopper features a hexagonal shape top and a round End. 10/19 cone size.
Stopper measures 1.4" long, and top measures 0.5" wide.
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