The classic glass that Eilong produced use the most high-level pure silica ore, the dilatability is very low, and it can withstand 150 degrees Celsius temperature difference instantaneously. Borosilicate glass is durable and not easy to fog up. Our quality certificated by Switzerland SGS which is the biggest inspection company, and passed EU and U.S.A. FDA safety standard. The design is simple, you can collocate other tea ware arbitrarily. Also, it suitable for office, home or restaurants, it’s a best utensil that consistent with modern busy life.