Fine art ceramic coaster. Scratch resistant matte surface with cork backing. They are 3 7/8" square. Many of the images come in sets. You can search for your favorite subjects. Mix and match any combination of coasters to create your own matching or custom set. If art prints are shown below, they can also be purchased. Visit my Etsy site here to see size and price options for the fish in art print form. Visit www.finewatercolors.com to see more available art.