3 heavyweight chipboard hearts are 4" x 4-3/4". Paint, stamp, and ink until your heart's desire. These heavyweight chipboard hearts will not curl. Art Tip from Chris: 2 thin coats of paint are much better than 1 heavy coat. Paint 1 side of your chipboard and let dry, then paint the other side of your chipboard. Repeat this step. Lightly sand, and wipe off dust with a barely damp paper towel. Let dry for about an hour. You will have a super smooth surface for adding color with more paint, ink, or rubber stamping Easy to collage with Red Lead Collage Sheets . . pick a few favorite images and uhu glue images to the chipboard heart. Smooth with a bone folder, so your collaged heart will be wrinkle free. Add a cute red heart, and send your Valentine to that special someone!