AdTech's Permanent Micro 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, gift wrapping and a host of crafting projects. The standout feature of this glue runner, however, is that the Micro Dot adhesive goes on repositionable, but sets permanent - allowing the user to fix mistakes, change locations, or remove materials cleanly. It comes pre-loaded with adhesive dots, which dispense easily and smoothly to the end of the roll.Details:0.31" x 8.75yd. (8mm x 8m) roll size12 packs (4 dispensers per pack, 48 total dispensers)Acid free, nontoxic and photo safeNo mess and no drying time - bonds instantlyGoes on repositionable but sets permanentSturdy applicator accepts refill cassettes (sold separately)