Magic color changing mugs

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 

https://www.goreapgifts.com/color-changing-ceramic-mugs/12oz-love-heat-sensitive-color-changing-ceramic-magic-mug.html

https://www.goreapgifts.com/color-changing-plastic-cup/350ml-bpa-free-double-wall-cold-color-changing-plastic-water-bottles.html

https://www.goreapgifts.com/color-changing-glass-mug/creative-450ml-l-cold-color-changing-glass-cups.html

https://www.goreapgifts.com/color-changing-aluminum-water-bottle/christmas-promotional-gifts-color-changing-sports-aluminum-water-bottle.html

https://www.goreapgifts.com/color-changing-stainless-travel-mug/father/'s-day-gift-!-450ml-creative-tempreture-heat-color-changing-stainless-steel-double-wall-mug.html