The Wood Trick Biplane from our wooden 3D puzzle range is just one of many great puzzle sets from the Wood Trick brand of mechanical models made of natural wood by professional engineers. These are cars and trucks, devices, machinery, weaponry and other amazing mechanisms that you assemble with your own hands using the laser-cut parts and your clever mind. The best thing you can imagine for inspiration is hovering among the clouds and observing how small the world below appears. Because of this, we developed a special model airplane builder that you may put together by hand. Specifications: Difficulty: Level 4 Pieces: 148 Dimensions: 280 x 305 x 140 mm Assembly Time: 3-4 hours Brand: Wood TrickModel: 031 Biplane 3D Wooden Puzzle Kit