The Bi-Plane mechanical model is driven by a rubber band pull back mechanism. Its a simple to build & ride by just pulling back the plane to store the rubber bands elastic energy and releasing it back in to front wheels rotation.The design of the Biplane is rich & elegant in look and a very creative in the mechanism building.The rotating front blades driven by front wheels make it look classic and realistic. The blades are connected with wheels via series of gears. The wide and flat front wheels ensures that the model is steady on road and won’t tilt off. Made from eco-friendly material and a high-tech exterior design make the model an educational kit for younger kids and a hobby kit for grown ups that can be gifted to friends. Detailed realistic design ensures that the model will become a wonderful complement to any home or office.The Bi-Plane kit is made of sustainable high grade wood that makes assembled model last for years. The quality of the parts is top-notch. A laser cut parts have to be pulled out of the boards and assembled to create a complete model. The Bi-plane comes with step-by-step, full-color, truly easy to follow instructions. Assembly does not requires glue (self assemble & snap lock technique) to be fully assembled into functional working Bike.