black glazed heat color changing ceramic coffee mugs ,magic mugs

black glazed heat color changing ceramic coffee mugs ,magic mugs ,will change 

the color when add the hot water or coffee 

Item No. :JSCM-16        

Material :High quality ceramic 

Size :16OZ ,different capacity available 

Design :OEM/cusomized design     

Printing :  water transfer printing     

USAGE :coffee, tea, milk, beverage, juice, promotion, gift and advertising