Delicol 11ounces Magic Color Changing Hot Cold Heat Sensitive Morning Mug Coffee Cup Tea Cup-the Best Gift for Lover,spending a Lifetime Loving You. (style 1) Made of hige grade bonechina. Spending a lifetime loving you,getting old together,just need one cup of hot water.This is a magic mug which can make you and your lover happy. The perfect gift for your beloved one,surprise him(her) with this magic mug. can't wash by machine,Don't expose under the sunshine for long time,Don't scrape on the printing with sharp tools The water temerature need to be above 60