Don't you just hate it when you leave your drink in the car and your cup holder is full of water? Well, this car coaster is the solution to that annoyance! This absorbent stone coaster will remove all of that water for you! And you can always remember your visit to the Hawaiian Mission Houses while using it! When you decide to get rid of your car, put the coaster on the fridge! Convenient magnetic backing. Measures 2.5" across.