4 PCS Car Cup Holder Coasters, American Flag Anti-Slip Shock-Proof Pad, 2.75In Waterproof Creative Embedded Drink Mat, Universal for Most Cars (Blue)

As one other reviewer noted, the "coaster" aspect of these is a bit underwhelming. They're not absorbent. However, the material they're made of is very grabby. It does help hold and cushion the bottom of your cup/bottle. My truck has four cupholders. These popped right into the front two, but I had to trim the edges of two of the coasters to fit them in the slightly-smaller back two cupholders. Not the fault of the coasters, but just be sure to measure your cupholders before ordering. The coasters add a subtle patriotic touch to the interior of your vehicle. The flag's stars and stripes are very well-defined. Overall, I'm satisfied with these coasters.

For $6, you can't go wrong. These are thick, but not absorbent. They fit in my truck's cupholders just fine and add a touch of a patriot's detail. Otherwise, there's nothing special about them.