The Ultra Pro Premium Series 9-Pocket Side Load Pages Card Holder is a clear, acid-free card holder made of polypropylene. Manufactured in the United States in 2017, this pack contains 100 standard-sized card holders. The side loader design is perfect for organizing and displaying sports trading cards in a professional and protected manner. This product, ideal for collectors and fans, ensures that your cards are securely stored and easily accessible for viewing or sharing.