500ml conical flask with wide neck and screw cap Made from high-quality polypropylene, Highly chemical resistant, microwavable and autoclavable at 121°C Translucent body makes it easy to see liquid level in the flask Easy to clean Designed for use in professional laboratories, but is an ideal choice for science classrooms and household use 500ml capacity conical flask with a wide neck (1.9" outer diameter, 1.6" inner diameter) and a screw cap. Flask measures 7.25" tall and 4" wide. The natural translucent color makes it easy to see any liquid level in the bottle. Made from easy-to-clean high-quality polypropylene. Designed for use in professional laboratories, but is an ideal choice for science classrooms and household use. Highly chemical resistant, microwavable and autoclavable at 121°C. Eisco Labs proudly manufactures its own products using state-of-the-art equipment, and following the highest standards of quality control. Each product is carefully designed by a team of laboratory professionals and experienced engineers with quality and durability in mind. They are manufactured with only the highest grade, raw materials and according to international quality standards to ensure that they can withstand use in even the toughest laboratory environments.