Three necks 
Round bottom flask 

24/40 Joints

Capacity of 1000mL

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.