3L-Scrapbook Adhesives: Thin 3D Foam Squares. These self-adhesive foam squares are designed to give a touch of dimension to your paper crafting projects. Use them to attach any element that you want to raise up and emphasize. This package contains 217 adhesive foam squares– 63 measure 11×12 mm (.43x.47 inch) and 154 measure 6.35×6.35 mm (.25x.25 inch), all are 1mm thick. Available in black or white (each sold separately). Imported.