ITEM NAME:Handmade double wall heat resistant thermoformed glass tea bowl (clear, 50 A4P4 Handmade double wall heat resistant thermoformed glass tea bowl (clear, 50 A4P4 Size:5.4 x 4 cm / 2.2 x 1.6 inch Capacity:50ml Operating temperature:-20 ~ 150 Celsius The expansion coefficient is 3.3 High quality borosilicate glass, hard to break, Duane, hard, lead-free Color:transparent Borosilicate glass is environmentally friendly and disposable. This material is resistant to breakage, without lead. Suitable for parties, offices and tea houses. A cup of tea is a good gift for my friend. Package Content:1 x glass cups Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.