$100- $200

M89 Mini Steam Boiler Steam Engine Model Gift Collection DIY A steam engine is a heat engine that performs mechanical work using steam as its worki...

Thermal Power Stove Fan Vintage Stirling Engine Physics Science Experiment Energy Education ToolFeatures:Vintage Model: This is an antique fan and ...

Product Features:1.STEM toys material: plastic, metal;2. Color: as shown in the picture3.Exquisite appearance: transparent and visible, finished pr...

Material: ABS 1.Background: The XR-7755-3 is the world's largest and most powerful reciprocating aircraft engine. During World War II, the U.S. Arm...

Teching Engine Assembly Kit Full Metal Galileo Pendulum Clock Engine Building Kit Gift for Collection The mini engine diy build model requires the...

Powerable Flying Pigeon Metal Stirling Engine Generator Mini External Combustion Engine Model Dual Cylinder 1.Interactive Science Exploration:...

Product Parameters:Name: all metal vertical double cylinder one-way piston steam engine & boiler modelItem No.: K007Material: stainless steel +...

ENJOMOR DIY Assembly Stem Educational Toy Metal Stirling Helicopter Model Kit Gamma Hot Air Stirling Engine Model Features:.It is not only a beauti...

Mini Single Cylinder Horizontal Steam Engine Generator Model DIY Kit Set (USB Rechargeable/Boiler Not Included) Features: 1. Single-cylinder singl...

3D Metal Mechanical Mantis DIY Assembly Model Kits Creative Ornaments Unique Appearience: Purple mantis is an insect model assembled and designi...

210ml Vertical Steam Boiler Model for Steam Engine, RC Cars & ShipsFeatures:.Matched with the steam engine model, the steam boiler is made and ...

Retro Metal Simulation Vertical Transparent Cylinder Steam Engine Model Physics Science Experiment Toy with BoilerFeatures:Retro Steam Engine: The ...

Romote Control Model Tractor Features:Structural Features: Gear drive mechanism, screw drive steering system, front and rear wheel shock absorber m...

Product Information Product Name: Mini Turbofan Engine Model Kit Brand: TECHING Model: DM122 Material: Aluminum Alloy + Zinc Alloy + Engineering...

LHD-881 1/390 2.4G RC Electric High-Frequency Twin-Engine Military Battleship Model (RTR Version) Features: 1.7.4V 1500MAH large battery capacity, ...

C127AI Scout Drone Model 2.4G RC 4CH Single-Rotor Brushless Helicopter Model Without Aileron (RTF Version) Features: Novel design: the latest Blac...

Small Condensate Pot for KACIO WS100L/WS100XL Horizontal Steam Boiler ModelFeatures:.The condense pot for steam engine boiler is suitable for KACIO...

Retro Steam Engine Model with Bootable Steam Heating Boiler Steam Engine Science Toy A steam engine is a heat engine that performs mechanical work ...

Features: .Speed of about 40,000 rpm / min. .Turbine wheel made of brass and aluminum. .Rotor made of brass, the diameter is 41 mm. Spindle stainl...

2 Cylinder Hot Air Stirling Engine Generator Model Features:Creative Exquisite Model:Dual heating cylinders + dual power cylinders are arranged si...

Mini Brass Gear Reducer for Steam Engine Model Features: .This is a gear reducer, that is, a miniature gearbox with a gear ratio of 3.2:1. .It is...

ENJOMOR Metal Stirling Airplane Model Set STEAM Science Education Toy Boutique Decoration Features: .Biplane fixed aircraft, and powered by a Sti...