3 RUBBER STOPPERS INCLUDED: This set has 3 rubber stoppers for these 3 Erlenmeyer Flasks, which are sterile & can seal the liquid in the flasks perfectly for experiment.
ACCURATE SCALES: 3 Erlenmeyer Flasks in different sizes (250ml 150ml 50ml) have clear and accurate scales for you to measure liquid efficiently & accurately without any problem.
SIGNIFICANT FEATURES: Reusable, environmental friendly, will not shatter easily, easy to clean, high temperature resistance, for laboratory, chemistry, science experiment, liquid measuring, etc.
HIGH-END MATERIAL FOR LAB: These Borosilicate Glass Erlenmeyer Flasks have High chemical durability and low thermal expansion, which can withstand the temperature under 800 °C (~1500 °F).
PACKAGE & WORRY-FREE: Each set has 3 Erlenmeyer Flasks & 3 Rubber Stoppers. If you received defective items, please contact us via email for full refund or replacement. We would try our best to fix issues.
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