Store and protect your valuable memorabilia with Ultra PRO's Anti-Microbial Guard pages, made with non-PVC, acid-free polypropylene film with special anti-microbial additives. These 1-pocket pages are designed to hold collectible photos and documents sized up to 8-1/2" X 11". Special anti-microbial additives eliminate potential pathogens with a proven 99.9% reduction in germs within 4 hours. Each pack comes with 25 individual pages and is made in California, USA.