1.pyrex glass2.100%hygienic and 100%food safe3.stong and durable,visible and bright Advantages of the High Borosilicate heat-resisitant glassware: 1 Chemical stability\lower expansivity; Thermal shock resistant(equal or lower than 800 degreee) 2 Excellent resistance to water, acid, alkali, corrosion; Can't absorb food odor 3 Heat-resisitant can reach over 120 degree, never be distorted under long ...