These Beautiful Car Coasters will look perfect in any car cup holder, including the carseat cup holder!! If you are tired of that watery mess at the bottom of your cup holders these are perfect to eliminate that problem, or add a little bit of decor to your car!! They are a neoprene material: (neoprene is like a thick koozie – or wetsuit material) >> Color will not fade or scratch, images are sublimated << Car coasters are made of soft and stretchy diving material, with anti-skid bottom to prevent the coaster from slipping off.The size of the car coasters are 2.75 inch in diameter and 5.0mm in thickness. Fit’s perfectly in car drink holders! Suitable for many occasions, can be used in car, office, kitchen, bedroom, living room, cafes, hotels, etc, to hold coffee tea cups, glasses, bottles, drinks.