A cool wooden model for self-assembly from the new UGEARS Trucks Collection. A cool wooden model for self-assembly from the new UGEARS Trucks Collection. Based on UGM-11 Truck, the Mechanical Tanker model has real TANKER with the unique opening mechanism which fits well for standard 0.33 L cans. Twist the knob on the tanker’s cap and unfold it in surprising way. This model is deliberately designed to have a raw, open look so even the casual observer could appreciate the marvels going on inside. The Mechanical Tanker is equipped with a four-cylinder rubber band engine and moves on its own forward in the “drive” mode and back on “reverse” transmission mode. Start the engine in ‘idle mode’ and look at four pistons which move realistically under the folding hood. Original gift idea, smart and engaging hobby, that brings together fathers and sons and takes grown-ups back to the childhood memories and the world of creation Ugears has created this 3D puzzle with great care and perfection. It is made of attractive, high quality wooden material. All parts are pre-cut into plywood boards and are easily removed for assembly.