These coasters for the car are an amazing invention! I was surprised at the quality. They are very thick and absorb water very well. I am so glad I purchased these for my ride. They are smaller than I expected (maybe about 2.5 or 3 inches or so) but fit well in each cup holder I have. My cup holders are different sizes and they work in them all. The finger cut outs make it a cinch to get in and out of the cup holders. I am going to buy more for the rest of my regularly used cup holders. Good bye paper towel or damp cup holder, I'm moving on.