• The set is made of high-quality borosilicate glass • Thanks to the double walls, the glasses not only keep drinks warm longer, but also protect your hands from burns • Elegant design emphasizes the color of the drink • Environmentally friendly - does not absorb foreign odors and does not emit harmful substances • Resistant to contamination, easy to clean • Safe for health and the environment The highest quality and time-tested reliability are the hallmarks of FISSMAN products!