【 Heat Resistant Borosilicate Glass 】 Crafted from borosilicate glass , the drinking cup tolerates temperatures ranging from -20°C to 180°C (-4°F to 356°F) , suitable for dishwashers , microwaves , refrigerators and more 【 Complete Set With Four Glass Cups 】 This package comes with four clear drinking glasses to meet daily usage demands . Each cup features 7.1cm/2.8in mouth diameter and 9.9cm/3.9in height with a 10oz/300ml holding capacity 【 Unique Design 】 These glass cups feature a unique shape that's gorgeous to look at and comfortable to hold in the hand . The elegant outlook upgrades the charm of dining tables and matches various home table decorations 【 User Friendly Build 】 Smooth rim and wide opening support smooth drinking , easy filling and effortless cleaning . Thick wide base boosts overall stability . These clear glass cups support quick hand washing and safe dishwasher cleaning 【 Versatile Usage 】 This glass cup set is great for for both hot and cold beverages . It works well for whiskey , bourbon , red wine , white wine , cocktails , beer and brandy as well as milk , juice , coffee , tea and water