The origin of the story: the birth of the single-cylinder engine: Love Point in 1860. Leroy invented the first working internal combustion engine, but the internal combustion engine as a practical vehicle power device was completed 16 years later by the German engineer Otto, Otto solved the problems of compression and ignition of combustion that affect the performance of internal combustion engines. Leroy was poor in his later years, and Otto made the company invaluable with the invention of the four-stroke engine.Specifications:.Color: As Shown.Material: Aluminum Alloy + Stainless Steel + Battery.Product Dimensions: 12.5 x 19.5 x 20cm.Product Weight: 789g.Package Dimensions: 40 x 29 x 17cm.Package Weight: 2120g.Packing: In-line Punching EVA + High-grade Metal Gift Box + Hand BagPackage Content:.1Set x Assembled Model ToyMessage from "JoyMeet":Thank you for browsing, our creative products are constantly being updated... Stay tuned!If you encounter any problems when using the product, please send us a message in time, we will serve you wholeheartedly!Normally all parts are included in the package. If any parts are missing, please send us the description (serial number + quantity + picture) of the missing parts and we will resend the missing parts to you free of charge.