FenglinTech Stirling Engine, L4 4 Cylinder Full Metal Car Engine Assembly Kit Model Toys for Adults

*Power: In order to make the product easy to operate and no harm to the product, use electric motor instead of traditional gasoline, lithium battery capacity 500MAH, running at full power for no less than 30 minutes

*Unassembled Engine Kit : Included 325Pcs in total. You can assemble it and enjoy the fun it brings. It takes more than 4 hours and the difficulty level is 4.5 stars.

*High Craftsmanship : The product uses metal material, CNC technology precision casting, aluminum alloy oxidation coloring, looks really a piece of art.

*Best Choice as a Gift: Birthday or Christmas and other festivals, ideal gift for yourself, friends, kids, colleagues or family members.

*Minimum Manufacturer Age Recommended: 8 Years Old.