Clear TPX® (polymethylpentene) plastic cylinders are non-wetting to prevent a concave meniscus, making the raised numeral, single scale graduations easy to read.Shatter-proofWide octagonal base prevents tipping and rollingSuperior chemical resistanceSafe for use to 175 °C (350 °F); steam autoclavable at 121 °C (250 °F)Made of TPX® Brand PMP for easy viewing