Collection: Under $100

Stirling Engine Model Metal Single Cylinder Power Generator Micro External Combustion Engine Stem Model

Stirling Engine Tank Kit External Engine Model Physical Experiment Engine

HSP No.8 Hot Nitro Engine Glow Spark Plug for 1:10 Methanol Engine and Model Car

Stirling Engine Kit Hot Air Engine Model Education Toy Electricity Power Generator LED

Stirling Engine Stirling Motor Driving Car Science Toy Hot Air Educational Toy

Stirling Engine Kit Miniature Balance Stirling Engine Model Toy With Crystal Glass Bottom

Multifunctional Homemade Mini Belt Sander for Engine Machine DIY Tools