Arcuisine Borosilicate Glass Measuring Cup 1 Cup / .25 Liters / 8.45 Ounces Borosilicate Glass Measuring Cup 1 Cup / .25 Liters / 8.45 Ounces The bakeware is made with Borosilicate which is the best glass for cooking in total safety. Only borosilicate glass can offer both resistance to thermal shock and safety BORON and TEMPERING ensure a double guarantee of resistance to thermal shock. Superior heat resistance + Superior chemical resistance = Superior quality | Scratch and Stain resistant Dishwasher safe. Comes with a 5 year manufacturers guarantee. Made in France