Promotional gifts cold tempreture color changing glass mug

Promotional gifts cold tempreture color changing glass mug,will change the 

color when add the icy cold water 

Item No. :JSPP-350   

Material :Clear Glass 

Capacity :350ml(different size available ) 

Design :OEM/cusomized design     

Printing :  water  transfer decal or paper insert    

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