Store and archive your valuable trading cards in Ultra PRO Toploaders with this clear, easy-to-use storage box made with archival-safe polypropylene material. Clear, see-through walls allow you to quickly check the contents to ensure you are pulling the right collection of collectible cards in Toploaders, while a write-on strip on top allows you to label and easily identify the right set. This Toploader Box is sized to hold Toploaders from 35pt to 360pt thickness.