[80mm outside diameter]

[Outer diameter 110mm |  12]

[Outer diameter 160mm]

[Outer diameter 100mm]

[Outer diameter 120mm]

[Outer diameter 140mm]

Features:
Select high quality, environment friendly and high density synthetic cork
The flask holder is pressed by high temperature and pressure, and the thickness is 30mm.
Acid and alkali resistance, resistance, heat resistance, heat insulation 
Good elasticity,strong friction coefficient,make sure the flask can place stably
Suitable for all kinds of round bottom glassware, convenient and practical


Specification:
Material: cork
Outer diameter: 80mm/3.1in, 100mm/3.9in,110mm/4.3in,120mm/4.7in,140mm/5.5in,160mm/6.3in(Optional)
Height:30 mm /1.2in
Weight: Approx.30g~60g/1.1oz~2.1oz


Package list:
1 x Laboratory Flask Cork Stand