I got these wooden coasters to match my 
Grena 30" Swivel Bar Stool and Cafe Table by Trent Austin Design. They are a perfect match and even more practical than I supposed they would be. I had misgivings about them being wood yet absorbing liquid from iced glasses. They work just as well as any stone based coasters. No problem! Very good product at a fair price and extremely well suited for my purposes.