· 【PREMIUM QUALITY】 - This boiling flask pack is built with high-quality borosilicate glass, heat-resistant, sturdy, and durable. It is heavy-wall designed, made by hand blown process to ensure uniform wall thickness.

· 【EXCELLENT SEALING】 - With the 24/40 standard taper ground joint, the round flask has excellent sealing and can be tightly combined with other glassware.

· 【UNIFORM HEATING】 - With the spherical bottom, this round glass flask has a larger heating surface than the flat bottom flask, so that the liquid can be heated or boiled more evenly. Its surface stress is also uniformly distributed.

· 【CLEAR & TRANSPARENT】 - The round borosilicate has a clear and transparent wall without protrusion, easy to observe the experimental phenomena, and liquid changes. The precise specification is marked for classification.

· 【EXTENSIVE APPLICATION】 - The round bottom glasses are indispensable in the distillation experiment and reflux process, which can withstand typical laboratory thermal variations in chemistry processes like heating and cooling.

Specifications
Material: Borosilicate Glass 3.3
Capacity: 2000ml/67.64oz
Joint Type: 24/40
Height: 9.65"/24.5 cm
Diameter: 6.5"/16.5 cm

Package Content
1 x Round Bottom Flask