Interlocking card sorting trays for MTG, Pokeman etc. Interlock them to sort, then stack them to store. I printed mine in differen't colors for each color of Magic. Also included is a tray to prop your cards up so they are easier to see when sorting. Just lay the tray on an angle and let the lip rest on the edge of the sorter. When done you can lay the tray and cards flat in the sorter or lay the tray on top of the cards to help protect them during storage.