AMERICAN CRAFTS-Thickers Foam Alphabet Stickers have embraced their thickness and they are here to stay. Add dimension and sophistication to your projects with these foam Thickers letter stickers. Lowercase letters only. Thickers are made of archival-quality materials and feature a variety of cool fonts and colors. Sheet size: 6inx11in. Acid-free. Alphabet sizes range fron 3/4in. to 1-1/4in. Imported.