coffee thermos double wall tea creative milk cup with handle

double glass high borosilicate flowerpot transparent heat insulation innovative heat resistant coffee cup description: 1。 the design of the double-layer coffee cup can effectively avoid heat preservation and make it safer and more convenient for us to drink tea. 2。 bright translucent beauty, let you experience a pleasant drink, can withstand the temperature of - 20 to 150 degrees. 3。 made of borosilicate glass, it is the glass material in the market, with the characteri