When you need to keep your drink at the perfect temperature, simply soak the Naturally Cooling 20 oz. Ceramic Tumblers in cold water for 60 seconds. As the water evaporates, it naturally cools the tumbler and keeps contents cool for up to 4 hours. The longer the tumbler sits in the open air, the cooler it becomes. To personalize, use chalk to create your very own design or write a message on the side of the matte black exterior.
- Each set includes 2 tumblers
- Naturally cooling ceramic stays cool for 4 hours
- Write on the matte black exterior with chalk
- 100% food safe ceramic
- Dishwasher safe