Set includes four wooden, 12-piece construction vehicle jigsaw puzzles– a cement mixer, a bulldozer, a dump truck and an excavator– each stored in a separate compartment of a sturdy wooden box! The slide-on box lid doubles as a convenient puzzle board! Each puzzle piece is shape-coded on the back for easy sorting. Great for travel. Dimensions (W x H x D): 8 x 6.1 x 2.5. Age rating: 3 yrs and up.