When it holds hot water,the cute plum blossom wash painting changes to vivid,the color becomes bright,adds funny to your coffee time. High quality porcelain mug,perfect for gift giving or as a special treat for yourself. it's a funny and art coffee mugs for women, mom, dad, grandma and grandpa; Full Creative and special present for someone in birthday party or Christmas Day The larger size 16 oz is suitable for a coffee or tea drinker. The curve body, wider handle, smooth lip and width to height ratio provide a comfortable drinking experience The lip of color changing mug has a smooth rolled edge that flares out very slightly and is very nice to drink out of. This heat sensitive mug itself is sturdy and weighted well Microwave safehandwash recommended as the special craftmanship.