The product is a set of 300 CSP Toploader Sleeves, designed for standard-sized cards with a clear polypropylene material. These soft sleeves provide a snug fit for cards measuring 20-60pt in thickness, featuring a resealable and acid-free design suitable for toploaders. Manufactured in 2023 by CSP, these team set bags are perfect for storing and displaying sports trading cards in a clear finish. Each sleeve can hold one card and is compatible with toploaders for added protection and organization.