This air compression ignitor or fire syringe demonstrates how the compression of air increases temperature and pressure inside a cylinder. A small piece of cotton is placed in the cylinder. After being rapidly compressed, the cotton ball will ignite and force the cylinder back up. This wonderful demonstration tool vividly demonstrates the principles behind diesel engine operation. Includes 2 spare O-Rings, and a small piece of starter cotton. COMPLETE INSTRUCTIONS ARE INCLUDED.
**DON'T FORGET TO BUY REPLACEMENT O-RINGS (SEE RELATED ITEMS BOX BELOW).
Base Diameter: ~2.5" Cylinder Diameter: ~1" Height (Piston Fully Extended): ~11" Height (Piston in Storage position): ~9"