3D Wooden Puzzle Engine Model Kit, 230 PCS Wooden Rotary Engine DIY Assembly Kit, Functional Mechanical Model with Dynamic Motion, Educational STEM Project for Adults and Enthusiasts

Specifications: Material: Wood Number of Parts: 230+ pcs Assembly Difficulty: Medium Assembly Time: About 3-5 hours Product Weight: 1.76 lb (800g) Package Weight: 2.09 lb (950g) Product Dimensions: 8.35″ × 5.91″ × 7.01″ (21.2 × 15 × 17.8 cm) Package Dimensions: 14.17″ × 13.39″ × 4.33″ (36 × 34 × 11 cm) Packing: Graphic Carton Ages: 16+

• 【Authentic Rotary Engine Replica】This 3D wooden puzzle accurately simulates an iconic rotary engine's core structure with high-precision laser-cut parts, offering a perfect blend of mechanical aesthetics and educational insight into unique engine design.
• 【Dynamic Working Motion】Once assembled and powered, watch the eccentric rotor spin smoothly inside its chamber, driven by seamless interlocking gears, creating a captivating and realistic mechanical motion for display and demonstration.
• 【Hands-On STEM Learning】Ideal for understanding mechanical principles, this interactive model clearly demonstrates the key operational differences between a rotary engine and traditional piston engines, making it a top choice for engineering education and hobby projects.
• 【Premium Eco-Friendly Build】Crafted from sustainable, high-quality wood materials like composite boards, this kit emphasizes natural texture and safety, providing an environmentally conscious and satisfying building experience for adult constructors.
• 【Precision Laser-Cut Parts】Features 230+ intricately laser-engraved wooden pieces designed for a precise, friction-free fit, ensuring stable assembly, smooth operation, and a durable final model that showcases expert craftsmanship.