Is your paper craft project looking a little flat? Try these wonderful foam squares. Features: add dimension, great for layering, high density, acid free, archival safe, permanent, acrylic based, lignin free, PAT tested and approved. This package contains (63) 1/2" by 1/2" by 1/16" and (154) 1/4" by 1/4" by 1/16" squares.