3D Laser Cut Metal Jigsaw Puzzle: Made of polished stainless steel, this mechanical model is a puzzle that you build by assembling laser-cut pieces without the need for glues or adhesives. MECHANICAL MODEL: This metal model kit has unique rotating gears based on movable mechanism and wheels with detailed and working features that bring your model to life. FUN FOR ADULTS AND TEENS - Adults, teens and older children love the challenge of modeling, and kids can learn about gravity, gears, design and engineering concepts as they build! EDUCATIONAL TOY - Improve your creativity, logical reasoning and problem-solving skills with this relaxing hobby during your free time. Parental care for children under 14 years recommended. BUILD YOUR WORLD: You can create models that shine, move, that transform your home and workplace into a tiny world of creativity. Experience the joy of creating something wonderful with your own hands!, Manufacturer: Time for Machine