3D Metal Model

Mechanical Hummingbird Model Steampunk DIY Metal Assembly Kit

Pumping Unit 3D Metal Mechanical Puzzle（219Pcs）

Metal Electric Mini Turbofan Tabletop Engine Kits（170+PCS）

1/10 Full Metal Dual-Spool Turbofan Engine Aircraft Jet Engine Model 1000+Pcs

Turbofan Engine Model Kit that Works - 1/12 Full Metal Dual-Spool Turbofan Engine Model Kit 300+PCS

1/10 Full Metal Electric Turbojet Engine Small Bypass Ratio Twin Rotor Aircraft Model

V8 Mechanical Metal Assembly DIY Car Engine Model Kit

5 Cylinder Radial Engine Model Kit（230+Pcs）

Innovative Mechanical Steampunk Style Manta Ray 3D Metal Model

Iron-Eater 3D Metal Model

Mechanical Nautilus DIY 3D Metal Model

Mechanical Turtle Model Steampunk DIY Metal Assembly Kit

TECHING 1/4 Supercar V12 Engine Model Kit with Synchronized Throttle Sound Effects 800+PCS

Hoglet V-Twin 4-Stroke Kick-Start Gasoline Motorcycle Engine Model

Flying Dragonfly Kinetic Sculpture 3D Metal Model DIY Kits

American Bald Eagle Model Kit - Haliaeetus Leucocephalus

Full Metal 4 Cylinder Car L4 Engine Model Kit

Galileo Pendulum Clock Engine Building Kit Toy

Air Engine Motor Model Educational Toy Electricity Generator Colorful LED

Robotic Engine Assembly Kit Educational Toy Build Your Robot Kit DIY Gift 160pcs