Description: Item Name: Stirling Engine Size: 102 X 102 X 125mm Material: Steel and Glass Speed: up to 180-250 RPM Start Temerature Difference: 20 Degree Weight: 250g Package Included: 1 x Low Temperature Stirling Engine Very fantastic craftsmanship, made with Metal Alloy Being a Gift, or a Display on your desk or anywhere ! The hotter it gets, the faster it goes! This low temperature stirling engine, It run on warm / cold surface, and it requires a small difference in temperatures to run.

• Features: This Low Temperature Stiring Engine could be a great gift for your friends or families. It is almost ready to run: after the installation, put it on a cup of hot water, then it will run itself. Note: Can use pencil to lubricate all the connections,other oils are not recommended.

Features: This Low Temperature Stiring Engine could be a great gift for your friends or families. It is almost ready to run: after the installation, put it on a cup of hot water, then it will run itself. Note: Can use pencil to lubricate all the connections,other oils are not recommended.