High quality color glass bow ,rapid thermal conductivity, easy-going through microwaves,saving energy Advantages of the High Borosilicate heat-resisitant glassware: 1 ... or frozen 4 Green\healthiness \environment friendly, no heavy metal 5 Artistic and practical, crystal and clean 6 Stain-resistant ... to scratches and prevents abrasion,keep brightness after frequent usage HIGH QUALITY COLOR GLASS BOW