Erlenmeyer flasks, also known as conical flasks are a specific type of laboratory glassware used for mixing chemicals. Their wide base with sides that rise to a narrower neck make them great for this purpose.
The offered flasks are made of borosilicate glass. Borosilicate glass has excellent thermal properties at both high and low temperatures. This allows the glass to be heated without the danger of cracking. The maximum recommended temperature for borosilicate glassware is about 500°C.