Keep Warm or Cold with Thermo Glass by WilmaxThe WILMAX THERMO GLASS collection is versatile and practical. Made of heat-resistant borosilicate glass which has the ability to withstand extremes of temperature with high thermal quality.The lid is wooden.Features:1200mlHeat Resistant Borosilicate GlassSafe to use on electric or gas stovetops (with a flame separator and on low flame)