Quality: Beakers are made of laboratory grade polypropylene plastic. Lightweight design and easy to clean. Reusable Properties: Made of high quality polypropylene plastic, heat & chemical resistant Polypropylene, durable, reusable, easy to wash. Autoclavable Clarity: Beakers feature excellent optical clarity with raised graduations & specifications Design: A tapered pour spout for easy filling and pouring, and the clear scale for more accurate measurement. Multi-Use: Designed for use in laboratories, kitchens, and classrooms.