Luciano 300ml High Borosilicate / Isotherm / Double Wall Glass with Handle 2PC Set -Brand: Luciano -Heat Resistant: can go up to 250 degree Celsius -Double Wall: the internal temperature of glass content doesn't reflect on the exterior -Can go into Microwave, or oven, and also fridge -Isotherm: the temperature inside (warm or cold) is kept for a long period -Elegant Design and Feel -Light and luxurious Hold -Combination of 2 300ml cups in One Color Box -Hand Made / Blown Glass This model also comes in 200ml Size. Luciano High Borosilicate Double Wall Glass Items are made in China in Luciano Glass Factories, and they are tested for safety and food security.