The illusion series are heat-sensitive mugs by designer Sylvian Dubuisson. The quality that goes into the making of these mugs ensures that it can retain it's color change over extended periods. Each 25cl mugs comes boxed in a nice coffret that surely makes for a great gift. The Illusion mugs alos comes in two other poetic colors.
For an even longer lifespan, handwashing with a soft sponge is recommended.