Refill for MONO Permanent Adhesive Applicator. Bonds instantly, cleanly and wrinkle free. Safe to use on paper, photos, cardstock, etc. Permanent bond. Easy to refill with snap-in refill cartridge. Approved Photographic Activity Test (PAT).Dispense an ultra thin layer of glue from this compact, easy to use applicator. Bonds cleanly and instantly without wrinkling paper. Acid-free and safe for photos as well as paper crafts.