Single neck 
Round bottom flask 
24/40 joint 
Capacity of 500mL
Made by hand blowing

Description:

Flasks are heavy wall designed, made by hand-blowing to ensure uniform wall thickness, made of high-quality borosilicate glass and annealed at 800 degree Celsius, can be heated directly in an open flame and can withstand typical laboratory thermal variations in Chemistry processes like heating and cooling.

We are the brand lab glassware,not the Poor quality glass,We could do any lab glassware accord to your samples or the drawings.if you need any glassware,please contact with us by the Ebay message.