16oz HEAT activated color changing cup. Does not change for cold drinks. Great for hot chocolate, coffee or tea. Comes with lid. Great for stocking stuffers, or gifts for kids or gifts for adults on the go. Pick a color & designs. Hot color changing options: Orange to yellow, Green to yellow, Blue to purple, sky blue to teal. Color Changing Cups, Heat Activated Color Cup, Party Favor, Gift For Kids, Stocking Stuffer, Personalized Cup