The premium borosilicate Erlenmeyer flask has a base diameter of 1.8 inches and an overall height of 3.7 inches, crafted from hand-blown Borosilicate 3.3 glass. It features an acid-proof polypropylene cap with a PTFE liner, making it suitable for laboratory liquid storage. This flask is also versatile for home use, including potion sets, and is top rack dishwasher safe and autoclavable. Eisco Labs borosilicate glass offers exceptional heat resistance, with a strain point of -515°C, an annealing point of 565°C, and a softening point of 820°C, ensuring durability in various environments.