Heat Resistant Borosilicate Pearl Detailed Flower Pattern Cup with Straw 350ml Coffee and Presentation Glass Borosilicate Coffee and Presentation Glass 1 Piece 1 piece of the product is sent. Made from durable material Borosilicate glass. It can withstand -20 to 180 degrees with higher safety. Can be placed in the dishwasher, microwave oven or refrigerator. It can be easily removed for cleaning. The glass is made of borosilicate glass that is resistant to thermal shock and does not absorb any odors, chemicals or residues. Suitable for hot or cold drinks