Friends They Don't Know Heat Reactive 14 oz. Ceramic Mug
Reminisce on your favorite TV show with this Friends heat change mug! Designed with the hilarious Friends comedy in mind, this mug is sure to make any fan of the series smile.
This standard sized black mug features the phrase ‘they don’t know’ until you pour in a hot drink since the mug will turn blue and says ‘they don’t know that we know they know we know…’.
- Do not microwave or dish wash - hand wash only!
- 14 oz. ceramic mug