The double wall tumbler is not vacuum, and there is gas in the middle. Because vacuum cup will blow up the glass fragments after being smashed, which is easy to hurt people. The compartment in the middle of the double wall tumbler can relieve the heat time and achieve a certain thermal insulation performance. When drinking hot drinks, it will not be hot, and when drinking cold drinks, the outer wall will not appear water mist.
Excellent insulation from hot and cold water
Made by high temperature resistant glass
Safe to use
Product Material :
|3 size available|
Normal brown inner boxes with safety master carton.
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