Offered in the most popular plastics - polypropylene, polymethylpentane (PMP); and in the sizes most needed in the laboratory, this wide variety of Plastic Beakers will meet most requirements. Lab Beakers with and without handles, graduated in approximate scales are manufactured to the most stringent quality control standards. Some chemistry beakers may be autoclavable and are especially useful when handling acids, alkalies and other corrosive chemicals. Easy to clean lab beakers.