This 170 piece Aircraft Building Set comes with instructions and enough pieces and colors to build an airplane, bi-plane and helicopter. Safe for ages 3 and up, and endless fun for a broad range of ages. Designed and Manufactured in Denmark.Plus-Plus is a new kind of construction toy. Its one simple shape produces endless possibilities. Assemble them flat to create a 2-D mosaic or work in 3-D to make more complicated structures. All Plus-Plus sets are compatible with each other.