General Size: The size of each round crystal silicone coaster is approx. The diameter is 2.75 inch / 7 cm and the thickness is 0.2 inch / 0.5 cm. It fits your car cup holder size. Tip: Please measure the size of your cup holder in the car before purchasing. Material: Durable structure: The car cup holder is made of high quality silicone, which is reliable and durable. temperature.It can protect the surface of the car from damage caused by high or low temperature of the cup.The soft texture can prevent your cup from being scratched. Non-slip and easy to clean: the surface of this car coaster is uneven, which can effectively prevent slipping, help reduce noise while driving, and can protect the original car cup holder slot from dust. Easy to clean, easy to air dry, just wash with water or directly wipe with a damp towel, then dry. Unique design: crystal rhinestones are used and the glossy automatic cup holder is more attractive. It is a great decoration for your car interior and will be appreciated by other passengers Perfect Gift: The car coaster with brand new rhinestone design can be used as the shining eyes of your car. It is a perfect car decoration and a great gift for family and friends on Christmas, birthdays and Valentines Day.