Biggie Small Shower Art pieces are 3" square or 3.5" diameter circle. The circles can have a border color. Both sizes are about 0.5" thick. If you don't see what you want, you can get a custom one made with whatever you want in it!
Not sure what Shower Art is? It's just like it sounds: waterproof art to hang in your shower with a suction cup. Why? That's a question we've never been able to answer.