The Rokr Wooden 3D Locomotive Puzzle by ROBOTIME is a splendidly designed mechanical model that captivates with its intricate details and moving parts. It's the perfect gift and hobby for enthusiasts of model-making and mechanics.

• Mechanical Wind-Up Spring Drive: Activate the locomotive using a key to see the wheels and axle move.
• Rotating Steam Whistle: Adds an authentic touch as it rotates when the locomotive is in motion.
• Inspired by the Industrial Revolution: A nod to the great era of mechanical innovation.
• Precisely Laser-Cut Parts: Each piece is engineered for a perfect fit.
• Glue-Free Assembly: Simply push out the parts from the pre-cut plywood and assemble step by step.
• Quality, Safe, and Non-Toxic Materials: Safe for all ages to enjoy.
• Encourages Technical Thinking: Improves imagination, attention to detail, and fine motor skills.
• Ideal Gift for Any Occasion: Suitable for birthdays, holidays, and creative minds.

Assembly difficulty is rated at 5 out of 5 by ROBOTIME, and the estimated assembly time is approximately 5 hours.

Packaging Includes: Pre-cut wooden pieces, spring, sandpaper, wax stick, nuts, handle, steel axles, an illustrated manual in English, and a QR code for an assembly video.