• 250mL CAPACITY || Pack of 12 amber glass Erlenmeyer Flasks with 250mL capacity and easy-to-read white enamel graduations every 50mL. Measures 3.3" diameter and 5.7" tall and features a narrow neck with a 34mm inner diameter
• AMBER GLASS || Made from high quality, heavy-duty borosilicate 3.3 amber glass suitable for light sensitive chemicals
• SUPERIOR DURABILITY || Microwavable and autoclavable, with superior durability and chemical resistance. Can withstand high temperatures and thermal shocks. Features uniform wall thickness ideal for heating and a reinforced rim for protection against high impacts
• MEETS DIN ISO STANDARDS || Conforms with DIN ISO 1773 standards for narrow neck conical flasks
• GREAT FOR PROFESSIONAL LABORATORIES, CLASSROOMS & HOUSEHOLD || Designed for use in professional laboratories, but is an ideal choice for science classrooms and household use

Pack of 12, 250mL-capacity Erlenmeyer Flasks made from heavy-duty borosilicate 3.3 amber glass suitable for holding light sensitive chemicals. Features uniform wall thickness ideal for heating, and a reinforced rim for protection against high impacts. Graduated every 50mL. Conforms with DIN ISO 1773 standards for narrow neck conical flasks. Size: 5.7"H x 3.3" dia. Neck opening: 34mm dia.