Folded Space - Game Inserts for Stone AgeNote: Insert designed for game with external box dimensions of 31. 7 x 22. 7 x 9. 2 cm. Insert compatible with Stone Age, including Stone Age: The Expansion and The Mammoth Herd. The design provides both efficient storage and improved game play. Many of the trays can be utilised during the game, and they greatly aid set up and clear away times. The insert is arranged in up to three layers.