Square ratio beakers are the safe, convenient alternative to griffin style beakers. Available in polypropylene or polymethylpentene, these beakers feature a vertical lip around the top of the beaker which serves two purposes: first the lip contains many spills that may occur with the rounded design of a griffin style beaker. Second, this vertical lip allows the beakers to be stacked together in sets when not in use. The translucent PP (pictured) is imprinted in blue and the max. temp is 250°F. The transparent PMP is imprinted in red and the max. temp. is 350°F. Sold in full cases only.