This is a beginner level model for Time for Machine lovers. Metal mechanical model; DIY self-assembly kit; Inertial mechanism PRODUCT DESCRIPTION: This sturdy metal model is based on the industrial design of the real-life heavy K700 tractor. This model is the perfect starter option, as it's easier to assemble due to the lack of a spring drive. The movement mechanism rotates from the momentum of the wheels. The tractor has a swivel rear axle just like its real-life prototype. The cabin doors and the hood can be opened, revealing the inertial mechanism inside. ADDITIONAL INFORMATION: Package size: 180 x 180 x 10 mm Model size: 112 x 55 x 44 mm Set: 3 plates with parts, cloth for polishing and instructions. Material: polished stainless steel. Number of pieces: 90 pieces Recommended age: 14+ Language of instruction: English, Ukrainian, German, French, Spanish, Russian. ALL MODELS COME IN CARDBOARD BOXES.