Lushh Set of 2Pcs 450 ML Double Wall Glass Cup, Insulated Clear Glass Cups for drinking Tea, Espresso, Juice or Water

The glass is made of handmade borosilicate glass, it is lead-free, high quality, It is blown by the mouth to form a smooth double wall, the bottom silicone seal allows pressure change, heat resistance.double wall thermo insulated design prevents side heat transfer, maintaining the ideal temperature.