... *9.5cmOur factory mainly produces,mug,ceramic mug,color changing mug,Sublimation mug,gift mug,coffee mug,coffee cups,porcelain cup,porcelain mug,new bone china,Advertising gift ... mug,gift color changing mug,promotion mug,etc.but we have mainly produces in color changing The color changing mug advantage:1.Feature:before color changing and after color ...