The Mlikero Card Protector includes 100 sleeves pieces, designed to fit standard-sized cards measuring 91mm x 66mm. Made of clear plastic with soft sleeves, these acid-free sleeves are perfect for protecting and displaying sports trading cards. Each sleeve can hold one card with a thickness of 35 Pt., providing a durable and transparent solution for organizing and showcasing your collection. This 5 pack offers a total of 500 sleeves, ensuring you have plenty on hand for all your card preservation needs.