Scrapbook Adhesives By 3L Mounting Squares are the fastest and easiest solution for mounting photos, borders and die-cut shapes. No more messy glue sticks! Double-sided adhesive squares that can be decorated with glitter, foils and more. Acid-free, lignin-free, archival-safe and temporarily repositionable for approximately 5 minutes. Come in a self dispensing box. 1/2 x 1/2 inch. 500 pc. White.