Specifications - Exact size is 10 1/8 inch L x 8 3/8 inch W. 1.6 Mil Thickness. 100 Pack. Crystal Clear Resealable Bags with Peel and Seal Adhesive. Crystal Clear - They are crystal clear to ensure that your artwork is well preserved. Your picture mats, photos and cards will show the display effect clearly. Acid Free & Durability - These Acid-free Bags have Widened adhesive flap, which could keep dust and moisture away from for a long time. There are also various sizes for you to choose. Reusable - With a re-sealable adhesive strip on the bags, these self-sealing clear bags can be easily opened and closed, allowing for seamless reuse and protection of your artwork and other items. Multi-purpose - These Sealed plastic bags are designed to comfortably fit picture mats, posters, cards, documents, paper, canvas and many other important articles. Protect the appearance of your articles from damage. The re-sealable adhesive strip is below the opening of the bag instead of on the flap. It can be folded over and sealed over the bag's opening. It can fit the below: 1. Mat frame + backing+ print 2. Mat frame + foam board + print 3. Double Mat frame + backing+ print 4. 8ply Mat picture frame + backing+ print