We love taking our coffee on the go but hate the spills! Thankfully, these Set of 2 Car Coasters are made from absorbent stoneware to soak up leaks and spills... while adding a little fun to your car! They're a perfect gift for new drivers, too! .25in H x 2.5in diameter absorbent stoneware Car coasters soak up condensation. To remove stains, soak coaster in 1 part household bleach and 3 parts water until stain disappears. Rinse and air dry.