Xyron 12-by-12-Inch Post-Style Heavyweight Polypropylene Page Protectors, 25 Count Pack of 25 12-by-12-inch transparent page protectors Non-yellowing, heavyweight polypropylene construction Finely stitched, welded edges for durability and long life For use with post-bound albums; free from PVC or plasticizers Measures approximately 12 by 12 by 1/5 inches