This is the silicone rubber tubing that we use on the MM-1 and MM-5 Stirling Engines. You might want to buy this if you plan to build your own similar Stirling engine.

For DIY Coffee Cup Engines

This is the black silicone rubber tubing that we use to make the adjustment link in the piston connecting rod on the MM-1 and the MM-5. We also use it as a flexible connecting rod for the displacer.

If you want to make a Coffee Cup engine that will run upside down, you might want to consider something like this.

Shipping to the USA is $3.50. Additional items: $1.75.
International shipping is $8.50. Additional items: $4.25.