Constructed from borosilicate glass, this two-neck round bottom flask features heat for daily inlaboratory heating operations. Standard 24/19 ground joint ensures tight connection and good sealing with matched experimental accessories. Inclined double neck design meets diverse reaction demands, convenient for feeding, connecting and testing during experiments. Round bottom structure bears uniform pressure, adapting to common heating and reaction environments in laboratories. Widely applied for reaction, distillation, mixing and sample treatment in teaching and scientific research scenarios.