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DIY wooden educational STEM kit “Walking Dinosaur (Brachiosaurus)”. This moving dinosaur makes science visible, understandable, and fun. Children learn by observing how mechanics work in a real model. The kit is suitable for children and students who want to explore the basics of mechanics, robotics, and engineering.  Features: This is a construction kit, toy, and educational tool all in one. This engaging building set brings prehistoric engineering to life. Young creators can assemble a mechanical dinosaur that walks using a clever system of gears and linkages. The Brachiosaurus has moving legs and a connected tail mechanism that demonstrates how motion is transferred through different mechanical parts. Once assembled, the dinosaur moves forward with a realistic four-legged walking motion. During assembly, children develop fine motor skills and precision, while testing the model helps reinforce scientific concepts. The model is made from laser-cut wooden parts that are assembled without glue using the included components. The wooden parts are smooth and durable, and the structure is designed to be stable and suitable for educational activities. Once assembled, the robot can be painted, decorated, and personalized with a unique appearance. Easy assembly: simple and clear instructions allow children to assemble the toy with minimal adult supervision, making the kit suitable for independent work or activities together with parents. STEM (Science + Technology + Engineering + Mathematics) is an educational approach that integrates science, technology, engineering, and mathematics into a unified learning model to prepare the younger generation for the rapidly developing world of technology. This is an excellent gift choice, as well as a useful kit for schools and educational institutions where simple, reliable, and clearly functioning teaching models are needed.  Working principle: The model has an electric motor that allows the dinosaur to move (walk). Movement is controlled by pressing a button. Motion transfer: the electric motor inside turns axles through gears, which are connected to the legs. This is an excellent example of how rotational motion is converted into linear walking movement. The legs are connected to levers that synchronously move the tail during motion, causing it to sway slightly from side to side while “walking.” Educational value: during assembly, children learn about mechanics, the basics of robotics, and engineering principles. Purpose: learning at home, in the classroom, and for project-based activities.  Technical specifications: Material: high-quality non-toxic laser-cut wood; metal; plastic. Power supply: 2 x AA 1.5V batteries (not included). Dimensions: 150 x 150 x 50 mm. Box dimensions: 261 x 165 x 55 mm. Weight: 131 g.  Kit includes: Wooden model parts. Motor. Battery holder with buttons (BATTERIES SOLD SEPARATELY). Screwdriver. Set of screws. Manual.  Recommended age: children aged 6–8 years and above.  Attention: contains small parts, keep away from children under 3 years old. A size deviation of 1–3 cm is possible due to manual measurement.