Description: Heart-shaped crystal base, crystal clear, which is very easy to clean & it wont leave tea stains, corrosion resistance. Double-wall design, the glass teapot can use alcohol /candles & other fire heating, heating will not burst.. Suitable for green tea, black tea, jasmine tea, oolong tea, craft tea, fruit tea, & other tea utensils. Widely used in coffee, hotel, teahouse, restaurant & other places, with high ornamental /fun, & improve your lifestyle! Specifications: Material High borosilicate glass Teapot Size Bottom Diameter 12cm x Height 8cm (including the cover) Inner Filter Cup 58mm x 60mm (Bottom Diameter * Height ) Teapot Capacity 600ml Cup Capacity 50ml Cup Size 46.5mm x 42mm (Inner Diameter * Height ) Color Transparent Heat-20 ℃ ~ 150 ℃ Package included:1 x 600ml Glass Teapot with Filter 1 x Crystal Base 6 x Glass Cups