What a fun addition for your car! Made of a sandstone material, these coasters are super absorbent. They have a notch cut out of them so that you can easily remove them from your cup holder. These measure 2.50" in diameter. 
These come in a set of two, one for each cup holder! 
Don't forget about a set for the backseats!
Personalize these car coasters with a design, logo or photo of your choosing.