Features:

• ✪ Origins:  In 1894, Maybach and Paul Daimler completed the R&D design of the in-line four-cylinder engine. The cylinders were cast and used the patented carburetor technology.At the end of the 19th century, it was indispensable for almost all the cars in the world. Jules Goux, in 1913, won the Indianapolis 500 grand Prix in a Peugeot. The engine is an in-line four-cylinder engine designed by Ernest Henry, which features the first use of two overhead cams and four valves per cycle, thus being highly influential as a racing engine. It is also the structural standard of inline four-cylinder engines used in racing cars nowadays.

• ✪ Challenging Assembly Fun: the original product requires the user to assemble 325Pcs parts and components. The whole process is close to the professional assembly line process. it takes more than 4 hours to finish assembly and the difficulty level is 4.5 stars. 

• ✪ Vision: The mechanical mechanism is extremely presented, and the clear transmission process is clear at a glance, and  it perfectly shows the mechanical beauty of the logic and strength.

• Exquisite Workmanship: The product uses metal material, CNC technology precision casting, aluminum alloy oxidation coloring, looks really a piece of art.

• ✪ Reducing degree: Based on historical classic inventions and products, it presents the core principle of machine operation and intuitively displays the core value of the machine. The design is inspired by the representative node-like classic works in the history of human industrial science and technology modeling.

• ✪ Extension: Each product has its own independent function and structure, and the product can be upgraded, combined and converted into a power system through a specified kit or DIY modification.

• ✪ Power: please use the electric motor instead of traditional gasoline, lithium battery capacity 500MAH, running at full power for no less than 30mins.  Therefore, the engine will be much easier  to operate and no harm to it.

• ✪ Best Gift Idea: It's a perfect choice as a birthday or Christmas and other festivals, ideal gift for yourself, friends, kids, colleagues or family members.

• ✪ Age Recommended: 10+ Years Old.

Promise

All products are visually inspected before they are packaged and shipped out.

Refunds Conditions

Under below cases, you will get full refund or new replacement

• Defective items
• Lost Items
• Shipped Wrong Items
• Out-of-Stock Items
• Cancelled Order

Under below cases, you will get partial refund

• Bought Wrong Items
• Any item more than two weeks after delivery date
• Items that were purchased when they were on clearance sale

Under below cases, you will get $0 refund. But new replacement is ok if you are willing to pay the reshipping fee

• Wrong Address
• Undeliverable Address
• Can not find consignee
• Consignee request pick up the parcel by himself/herself, but did not done it in time.

How To Return the Parcel to us?

 If you need to return the products back to us, please contact us first. our email is service@metalkitor.com

If the return is due to a product defect or a mistake in processing by us, we will either send a prepaid shipping label, or issue a refund to cover reasonable costs of shipping back to us once the costs are incurred. Otherwise, you will be responsible for paying for your own shipping costs for returning any items.

It takes about a month to receive the parcel returned oversea. Our team will refund you after we check the parcel within 2 working days and contact you via email. (service@metalkitor.com)

Procedure

To initiate the return, refund, or exchange of any products, please contact service@metalkitor.com or by using the Contact Us page.

Note: You may be asked for a receipt and/or proof of purchase, along with photographs and/or videos that clearly illustrate any product defects, mistakes in processing, or other issues.    

After confirmed, you can get a new replacement or refund within 1-3 working days.