$100- $200

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

2 Cylinders Hot Air Stirling Engine Generator Model  with Voltage Meter LED Bulb Balance Type  Science Experiment Educational Toy Features: Nove...

Twin Cylinder Stirling Engine Electricity Generator with Bulb Stirling Engine Motor Model - Enginediy Features: Novel Shape: It is a balance-type t...

Features: .Mechanical Crafts: This is a "unique" steam turbine designed with reference to the principles of steam turbines and aircraft engines, co...

Adjustable Speed Stirling Engine Model Science Experiment Stem Toy with Ball Bearing Flywheel - Red Features: .This Stirling engine model is nove...

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 Flame Eater Vacuum Stirling Engine External Combustion Engine Thermal Engine Science Education ToyFeatures:.This is a vacuum Stirling engin...

ENJOMOR Industrial Metal Mini α Structure Hot-Air Stirling Engine Electric Generator 4000rpm Science Educational Mechanical Toy And GiftFeatures:.T...

ENJOMOR Miniature Mini Alpha Rocker Arm Connecting Rod Stirling Engine Model Science Education Toy Enthusiast GiftFeatures:Science Educational Toys...

Remote Controller, Receiver and Battery for Steam Car Dump Truck ModelMore Details:.Material: Plastic + Electronic Components + Battery.Product Wei...

Build Your Own Violin - TECHING Metal Violin Puzzle Model Kit STEM Educational Toy Creative Gift Music Box Amazing! How can one imagines that TECHI...

Teching Pedestrian Robot Engine Building Kit Full Metal Collection GiftPedestrian Robot mini engine build kit  requires the user to assemble the pa...