These are very fun drink coasters with a little whimpical flare. The are nicely made. The bottoms of the coasters do not slide. I was a little worried about that. Cups and glasses sit steadily on the vinyl coaster, too. No slipping and sliding. The middke of the coaster has album type pictures that make these great fun and even a bit nostalgic. Since they work well and accommodate drinks of various sizes, they are practical, as well.