I Know Why the Caged Bird Sings Vinyl Wall Decal 22" x 8" High Quality Vinyl Decal for your Wall. Larger Decals are available, please contact us and we will customize it for you. Please choose a color from the color chart. If no color is chosen, the decal will be black. This decal is easy to apply and remove. It can go almost anywhere. As long as the surface is smooth and clean.