... 2.Suitable to drinking, double adiabatic, good demeanor, share view and admire!3.Quality certificate: environment-friendly borosilicate glass, virulent and inodorous, ... ,ISO9001,FDA,LFGBProduct Features: 1.Use the borosilicate glass as material, clear, environment-friendly, good-touch feel.2.Resist the sharp low ... put the water or drinks before heated the product Heat-Resistant Double Wall Glass Cup