Like new condition!
"This puzzle is an expanded version of the Meanders Box. In the Meanders Box, the top plate slid along with the four side pieces. In the Dual Meanders Box, not only does the top plate slide, but the bottom plate also slides. This allows for a puzzle with a large number of moves without the need to increase the steps of the side pieces.
Dual Meanders Box presents four challenges based on the arrangement of the top and bottom plates. To open the hidden lid and access the cavity, the challenges range in the order of increasing difficulty: 325, 367, 410, and 506 moves. Similar to the Meanders Box, the grooves carved like mazes have limited branching. However, unlike the Meanders Box, where attention was focused solely on the groove in the top plate, the Dual Meanders Box requires the top and bottom plates to be in the correct spatial relationship for the puzzle to reach the goal. Consequently, the puzzle's difficulty has increased significantly..."
Comes from a smoke free home and has always been properly stored.