Avery Outdoor poster sign kit Outdoor Poster Sign Kit, 18” x 24”, Yellow, 4 Poster Backings/Carton Turns your desktop into a sign shop Easily create professional-looking posters No cutting or pasting—print-to-the-edge sheets join together for a professional look Repositionable adhesive makes it easy to remove and replace sheets for perfect alignment Includes laser/ink jet sheets, backings and Avery® DesignPro® Sign Edition software that includes thousands of clipart and template designs Durable corrugated outdoor poster backing with weather-resistant sleeve to protect poster from rain, sun and wind. Includes enough sheets and backings to make four poster signs, plus four spare sheets.