1. Shrink sheet set: 12 sheet shrink films, 10 pack key chains, 100 pieces O rings and one shrinky paper with pattern 2. Shrink sheet size: 11.5 x 7.8 inches 3. Wide applications: these shrink films are suitable for DIY pendants, earrings, bracelets, keychains and other accessories makings. also suitable for using in classroom or home when playing with kids 4. How to use: please write on the rough side, it is easy to write with pencils, colored pencil, markers 5. With 10 key chains: you can use them to make your own style keychains