3D Metal Puzzles for Adults, 666+PCS DIY Assembly Mechanical Emerald Biomechanical Crab Model with Movable Joints, Creative Decorations for Office & Home

🦀【Fortune-Inspired Biomechanics】Combines crab symbolism (prosperity) with industrial design. Features 6 adjustable legs and iridescent emerald plating for dynamic poses (19.8cm span) 🔩【Aerospace-Grade Durability】0.5-1.2mm 304 stainless steel plates with CNC precision. Anti-rust finish withstands humid displays, ideal for coastal-themed interiors or office decor ⚙️【Master-Level Challenge】666 laser-cut parts offer 8-14 hours of immersive assembly. Toolset + numbered manual guide complex claw/exoskeleton construction (ages 15+) 🧠【STEM Skill Catalyst】Enhances mechanical reasoning through layered joint/gear systems. Perfect for engineering students or robotics clubs seeking hands-on learning 🎁【Museum-Quality Display】Emerald-green metallic sheen elevates shelves/desks. Ships in art-grade box – ideal for marine enthusiasts or steampunk collectors