These are the best coasters I've ever used. Very versatile which I will explain later on. Gone are the days of condensation dripping down onto wood coasters only to overflow onto the surface you're trying to protect or sticking to your drink as you are picking it up. (only on one side - more info on this later).This silicone coaster solves many problems of pre-silicone coasters. The Amazon listing doesn't show it, but this coaster has two sides, both of which have pros and cons. The side with the dots will not create a liquid seal and suction to your drink unlike the other side which happens sometimes. With the other side, all drinks are stable but be cautious of putting drinks down with thin edges, such as cans, as they can lean.I am currently using this in three ways. One, flat on a table as a regular coaster. Two, I've put it as an insert in the Ikea cupholder LÅNESPELARE as I didn't like the idea of water condensation coming into contact with wood. And lastly, this coaster can be cut to size for different applications. I currently have cut two rings off for it to fit perfectly in my 2010 Toyota Corolla.