Glass Cup Creative Design Double-Layer Transparent Mermaid Drinking Durable Clear Borosilicate Glass Tea Cup 100ml is Advanced Technology.Temperature resistance (from -20C to 180C). It's greatful for occasions of home & office & catering life.Used as drink cups, and bar or club accessory and so on. Perfect for hot and cold drinks.You can pour 100 centi-degree hot water on the frozen borosilicate glassware, it can tolerate the thermal shock. Suitable for various places, can serve as a nice gift Great for serving your guest or enjoying yourself