Models & Model Kits

Joytopiaminds Stirling Engine Model Kits, Pre-Assembled Alcohol-Powered Stirling Engine with Quartz Heating Tube for Physical Science Experiment Display 【High-Temp Quartz Heating System】Features durable quartz glass heating tube designed for stable, high-speed operation using alcohol fuel (95% recommended). Built for long-term demonstration without wear 【Premium Metal & Glass... Joytopiaminds Stirling Engine Model Kits, Pre-Assembled Alcohol-Powered Stirling Engine with Quartz Heating Tube for Physical Science Experiment Display