Dyn-A-Med 80098 Polypropylene Tri-Pour Disposable Beaker, 1000mL Capacity (Case of 100) Round, disposable, graduated beaker for general laboratory use Polypropylene (PP) for resistance to most chemicals, excellent dimensional stability, and can be sterilized Variety of sizes (50-, 100-, 250-, 400-, 800-, and 1000-mL) Translucent, tri-corner beaker with pour spouts form three pour areas, flat bottom for use with magnetic stirrer, sloping sides allow nesting, autoclavable