Hexagonal Glass Bottle Stopper
[MATERIAL]: Borosilicate Glass 3.3.
[HEAD TYPE]: Hexagon.
[JOINT SIZE]: 14/20, 24/40, 34/45, 45/50 Male Tapered.
[SEAL WELL]: It can be sealed and moistureproof by inserting it into the mouth of the container.
[APPLICATION]: It is mainly used for sealing the containers containing volatile substances, and can also play a role of moisture-proof.