AdTech's Permanent 3/8" Dot Glue Runner is acid-free and safe to use on photos. The permanent adhesive bonds instantly to paper, ribbon, foam, plastic, wood and many other materials, making it ideal for scrapbooking, photo albums and a host of crafting projects. The standout feature of this glue runner, however, is that you can apply a long line of adhesive dots, or a single dot with ultimate precision. It comes pre-loaded with adhesive dots, which dispense easily and smoothly to the end of the roll. Details: 3/8" x 8.75yd. (10mm x 8m) roll size 3 dispensers Permanent Acid-free, nontoxic and photo safe No mess and no drying time - bonds instantly Sturdy applicator accepts refill cassettes (sold separately)