Melissa & Doug 12 Pc Jigsaw Bundle - Vehicles & Construction Two 12-piece wooden jigsaw puzzles in favorite themes: vehicles and construction. Colorful and detailed pictures make these the ideal first jigsaw puzzles. Sturdy wooden puzzle boards frame the puzzle during play and keep pieces together for easy storage. An ideal introduction to jigsaw puzzles--10 of the 12 pieces in each puzzle are sides or corners. Sturdy wooden tray.