The Sealed Case 100 Packs of Ultra PRO 2.5" x 3.5" Soft Trading Card Penny Sleeves are designed to store and protect standard-sized trading cards. Each sleeve is made of extra clear, acid-free material to ensure the longevity and visibility of the cards. With a capacity to hold 1 card each and a thickness of 35 Pt., these soft sleeves provide a secure and transparent storage solution for any trading card collection. The case contains a total of 10000 sleeves, making it ideal for storing and organizing a large number of cards in a organized and protected manner.