High quality color glass bow ,rapid thermal conductivity, easy-going through microwaves,saving energy Advantages of the High Borosilicate heat-resisitant glassware: 1 ... metal 5 Artistic and practical, crystal and clean 6 Stain-resistant, easy-to-clean 7 Rapid thermal conductivity, easy-going through ... to scratches and prevents abrasion,keep brightness after frequent usage HIGH QUALITY COLOR GLASS BOW