Acrimet Wall Mount Sign Holder Display 17.5&rdquo; x 12.5&rdquo; Self Adhesive (A3 Size) (2 Pack) (Clear Crystal) Fast and Easy Mounting - Includes peel-and-stick adhesive for simple mounting, easy and quick installation on many surfaces. Pack with 2 - Size A3 - Great Size 17 1/2" x 12 1/2. Easily switch out the paper inside the document holder for any other document or pictures you have. Sturdy, durable and strong, see through and clear material. Modern design, can be used on landscape or portrait modes.