Aleene's Craft Tack replaces the unsightly mess that tape and tacks leave behind! This easy to use, lightweight putty provides a strong bond between photos, papers, vellum, cardstock, and other lightweight materials. It is acid nontoxic, photo safe and reusable, making it ideal for your scrapbooking and papercraft needs! Use it to add dimension between layers and when you don't have time to watch glue dry. This package contains 1-3/4 ounces (50 grams) of craft tacks. Acid and Lignin free. Conforms to ASTM D-4236. Imported.