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Packaging Specifications: 3pcs/pack (50ml,150ml,250ml,including 3 rubber stoppers)
Material: Science flask made of high-quality glass,reusable,environmentally friendly,easy to clean.
Flat Bottom: A flat-bottomed lab erlenmeyer flasks allows it to stand upright on a flat surface without resting on bottle clamps or cork racks.
Function: Boiling flasks are ideal for yeast culture,mixing solutions,chemical flasks for beginners or professionals to use in scientific chemistry laboratories,and also suitable for students,classrooms and daily use.
Service: If you have any questions about the product or order,you can contact us by mail. We will be happy to assist you and reply as soon as possible.