Heat changing 20oz skinny tumbler

Customize this tumbler by adding a name, phrase or decal of your choice. 

*this will not be sealed with resin* 

The colour changing effect is temporary, the price is reflective of the temporary change, this will not effect the integrity of the tumbler. The tumbler will be blue once the colour changing effect wears out. 

Approx length of effect 4-6 weeks with moderate use.