Funny Magic Morphing Coffee Mug or Tea Cup,ceramic Material Mugs- Best Husband Ever When the mug is cold,It just plain black in color When the mug is hot,It will show the nice and funny image or words 100% Ceramic mug for For coffee,milk,tea and hot chocolate Come in 11 Ounce with black handle Easy to clean,dishwasher safe,Size:3.74" tall by 3.23"diameter