Material : The bling car cup holders are made of quality silicone material, reliable and temperature resistant, which can protect the car surface from being damaged by the high or low temperature of the cup body, and the soft texture can avoid your cup from being scratched. Size : The size of each crystal silicone round coaster measures approx. 2.75 inch/ 7 cm in diameter and 0.2 inch/ 0.5 cm in thickness, proper dimension for you to put in your car cup holder, but please to check the dimension of your car cup holder before buying. Features: The surface of this car cup holder is uneven, which can effectively prevent slipping, help reduce noise during driving, and can protect the original cup holder slot of the car from dust. Easy to clean, easy to air dry, just wash in water or wipe directly with a wet towel, and then dry. Occasions: In addition to being placed in the car, this coaster can also be used as a coaster in the home and office. Rhinestone coasters are good accessories for most cars. They can be used as gifts for birthday parties, Christmas, housewarming, to family, friends, roommates, colleagues, etc.