These black 18-pocket pro pages are made of acid-free and archival safe polypropylene, ensuring the preservation of your collectible cards. The side-loading double-sided design allows for easy access and display of cards, with pockets measuring 2 ⅝" x 3 ¾". Each pack includes 10 pages, perfectly fitting into the 9 ¼" x 11 ¾" page dimensions. Enhance your collection with crisp, professional-looking pages.