Scrapbook Adhesives By 3L 3D Thin Foam Squares - White Variety Pack 3D 1mm thick. Is your paper craft project looking a little flat? Try these! They are great for layering or just adding a little dimension. This package contains 63 1/2in and 154 1/4in high density, acid free, archival safe, permanent, acrylic based, lignin free, PAT tested. Imported.