Our company has sold the color changing mugs for about 10 years .
There are heat color changing mugs and cold color changing mugs .
For the hot changing mug ,when add the hot water (water tempreture has to
to be above 45cel degree),then can start changing ,more hot of water ,more quickly to change.
For the color changing mug ,when add the icy cold water ,the design will change
The color changing decal be applied on the different material of the mugs like the
Color changing ceramic coffee mugs
Color changing plastic cups
Color changing stainless steel travel mugs
Color changing aluminum water bottles
Color changing glass mugs
The below pics are for your reference
Previous Cold color changing glass beer mugs
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