The perfect gift for that person in your life that loves coffee and tea!
Set of two
3 x 3 in.
Tempered high borosilicate glass is heat and acid-resistant, lead-free and non-toxic, with a very low coefficient of thermal expansion and good thermal stability. It can withstand three times the temperature difference of ordinary glass, and can withstand temperature changes of 300 degrees, explosion-proof and heat-resistant, all of which are incomparable to ordinary glass.
Safe to use with hot and cold liquids.