These shark stamps are seriously cool! The pane includes 20 Forever stamps featuring five different shark species found in American waters: mako shark, whale shark, thresher shark, hammerhead shark, and the great white shark. The realistic images are beautifully detailed, and the background blue color deepens down the pane, creating this awesome ocean depth effect. As Forever stamps, they'll always be valid for first-class postage even if rates go up in the future. The self-adhesive backing makes them easy to use - no licking required. Beyond just mailing letters, these stamps celebrate shark conservation and ecology, bringing attention to these amazing creatures. Perfect for shark enthusiasts, conservation supporters, or anyone who appreciates nature-themed postage. The sheet makes a great collectible too. Whether you're mailing bills, letters, or packages, these stamps add some underwater excitement to your correspondence!