The engine can be seen in operation by visiting the following link:
https://www.youtube.com/watch?v=QOTJSjlNeqw
 
It is not a kit. The engine is assembled and ready to operate, although it can be easily disassembled.
Dimensions 18 x 8 x 12 cm
fuel: alcohol only
weight 600 grams
materials: Full metal, steel, brass, aluminum, inertial flywheel, borosilicate glass, neodymium magnet.
The fuel tank is fastened with a magnet
Does not require maintenance or replacement of silicone gaskets.

Original design. Vintage style No product in series. Handmade in Spain with hardware and recovered materials.
 
 
other models:
https://www.ebay.es/sch/ophel_957/m.html?_nkw=&_armrs=1&_ipg=&_from=