This insert is designed to be compatible with Marvel Champions: The Card Game, with space for over 900 sleeved or 1,400 unsleeved cards. The design provides both efficient storage and improved game play. Many of the trays can be utilized during the game, and they greatly aid set-up and clear-away times. The rules act as a lid on top of the trays. This product consists of a flat-pack of 4 Evacore sheets. The trays require assembly, which is quick and fun, using ordinary PVA glue. Detailed instructions are included in the package. Note: Insert designed for game with external box dimensions of 25.5 x 29.5 x 8 cm.