This Pyrex measuring jug is made from borosilicate glass and features a red plastic lid, which fits securely over the jug to safely store liquid ingredients. The lid has been designed to allow two different flow speeds. Use the high spout to let a larger amount of liquid out, or rotate the lid to reduce the amount of liquid. The jug features the iconic Pyrex red measuring scale, and is made from borosilicate glass, which is thermal-shock resistant. 10 Year Guarantee. Made from tempered glass. General information: Easy to clean. Microwave, freezer and dishwasher safe. Size H10.7, W21, D16, diameter 21cm. Manufacturers 10 year guarantee.