Our On the Water stone coasters are made using tumbled marble tile and artwork painted by Winslow Homer, an American artist from the late 1800s. Made to last a lifetime, our coasters are incredibly durable and good for use with hot and cold beverages. Like tiny works of art, our pieces are useful and beautiful! -each tile measures 4x4 inches square -fully backed with cork to protect table surfaces -sell as a set or as singles - we find that singles move more quickly - Suggested retail price - $12-16 per tile -one case includes the four tiles pictured -each piece will vary slightly due to the color & character of the stone