250 self-adhesive corners3L Scrapbook Adhesives Photo Corners give you a quick and easy way to attach photos, postcards, documents, cards, use in scrapbooks, memory books, photo albums, and journals. They are acrylic based with no staining or bleeding, plus acid & lignin free, photo safe and self-adhesive. 1/2 inch. Polypropylene. 250 pc. Black.