My son picked these out for his Illini-alumni step dad for dad's day gift. The coasters are typical sandstone heavy coasters and sure they will last. The idea is to have the "I" on the coffee table so my SO gets to use every night when he sits with soda or whatever he's drinking. My only complaint is the "I" isn't bright the way it shows in the photo. It's washed out - likely from the application on to the sandstone.
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