The Dyn-A-Med polypropylene (PP) graduated beaker is available in a variety of sizes (50-, 100-, 250-, 400-, 800-, and 1000-mL). This disposable, translucent, tri-corner beaker has three pour spouts, a flat bottom for use with a magnetic stirrer, sloping sides that allow nesting, and is autoclavable. This beaker is not for use on a hot plate. Polypropylene resists most chemicals, has excellent dimensional stability, and is sterilizable. Beakers are used for measurement, quality testing, sampling, and research, and in lab applications in chemistry, education, research, and life science applications. Dyn-A-Med manufactures lab ware and food industry supplies. The company, founded in 1971, is headquartered in Escondido, CA.