red, blue and black color change mugs
filling hot water in the mugs, then, it will change the color from former color to white, and the picture on the mugs can be showed on the mugs
it is magic !!!
Company address: 7G, Meirong building, Meirong Road, Longhua, Baoan, Shenzhen, Guandong, China
Copyright 2010 Hoyu tech co.,ltd