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We proudly offer free worldwide shipping via! Please note that we require 3 to 5 working days on average to fulfill your order before dispatching it. Rest assured, we are doing everything in our power to get your order to you as soon as possible! Once your order is dispatched, depending on your country or region, the estimated delivery time is between 10 and 15 business days. Please consider any holidays, natural disasters, or pandemics that may impact delivery times.
For pre-ordered or back-ordered items:
If your order contains a pre-ordered or back-ordered item, we will ship any items we have available immediately and ship the items that are pre-ordered or back-ordered immediately when we have them available. So if you ordered more than one item on a single order and received only a part of it, don't worry; you will receive your other items shortly after.
Track your order:
You will receive a confirmation email and/or text message if you provide a mobile phone number, containing a tracking ID and a link to follow the journey of your package. To track your package, you can visit our tracking page.
Please allow 3 working days for the tracking information to show. (It will take time for the package to be delivered from our warehouse knife distribution center.)
Wrong address disclaimer:
It is the responsibility of the buyer to make sure that the shipping address entered is correct. We do our best to speed up processing and shipping time, so there is always a small window to correct an incorrect shipping address. Please contact us immediately at support@shopholidaygift.com if you believe you have provided an incorrect shipping address.
Returns:
By placing an order on shopholidaygift.com, you are responsible for the cost of return shipping back to shopholidaygift.com. Please refer to our refund policy for further information on how to make a return.
Lost/Stolen Packages:
The Best Trends Online Store is not responsible for lost or stolen packages. If your tracking information states that your package was delivered to your address and you have not received it, please report it to your respective shipping carrier using the information provided to you on our tracking page. If you have any further questions on how to do this, please reach out to our customer support team at support@shopholidaygift.com.
Cancellation
You may cancel your order within 48 hours of placing it. Please allow 3-5 business days for the refund to post to your original form of payment.
Returns
Our policy lasts 30 days. If 30 days have passed since your purchase, unfortunately, we can't offer you a refund or exchange.
To be eligible for a return, your item must be unused and in the same condition as when you received it. It must also be in the original packaging.
Additional non-returnable items:
Some health and personal care items
Any item that is returned more than 30 days after delivery
Sale items (if applicable). Only regular-priced items may be refunded; unfortunately, sale items cannot be refunded.
To complete your return, we require a receipt or proof of purchase. Please do not send your purchase back to the manufacturer. There are certain situations where only partial refunds are granted (if applicable). Any item not in its original condition is damaged or missing parts for reasons not due to our error.
Refunds (if applicable)
Once your return is received and inspected, we will email you to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment within a certain number of days.
Late or missing refunds (if applicable)
If you haven't received a refund yet, first check your bank account again.
Then contact your credit card company; it may take some time before your refund is officially posted.
Next, contact your bank. There is often some processing time before a refund is posted.
If you've done all of this and you still have not received your refund yet, please contact us at support@shopholidaygift.com.
Exchanges (if applicable)
We only replace items if they are defective or damaged. If you receive a damaged or defective product, you have 72 hours from the arrival of the product to contact us about the defective unit. You can reach out to us here at support@shopholidaygift.com.
Gifts
If the item was marked as a gift when purchased and shipped directly to you, you'll receive a gift credit for the value of your return. Once the returned item is received, a gift certificate will be mailed to you.
If the item wasn't marked as a gift when purchased or the gift giver had the order shipped to themselves to give to you later, we will send a refund to the gift giver, and he will find out about your return.
Shipping
To return your product, you should email us at support@shopholidaygift.com.
You will be responsible for paying for your shipping costs when returning your item. Shipping costs are non-refundable.
Depending on where you live, the time it may take for your exchanged product to reach you may vary.
If you are shipping an item over $75, you should consider using a trackable shipping service or purchasing shipping insurance. We don't guarantee that we will receive your returned item.
This precision 5-Cylinder Radial Engine Model showcases authentic engineering with over 230 premium aluminum alloy and stainless steel parts. The fully operational model features transparent viewing windows to observe the intricate movements of the crankshaft, connecting rods, and pistons in action, making it perfect for collectors, enthusiasts, and STEM education for ages 14 and above.
Our 5-Cylinder Radial Engine Model features genuine precision-cast and machined parts in anodized aluminum and stainless steel. Each component is manufactured with exacting standards to ensure accuracy and authenticity. The model's detailed parts directly correlate to assemblies found in modern, high-performance aircraft engines, providing a superb introduction to engineering and mechanics while creating a visually stunning display piece that showcases the elegant design of radial engine technology.
This comprehensive kit contains over 230 parts, each finely-crafted, clearly labeled, and carefully packaged in custom foam carriers to ensure they arrive organized, complete, and undamaged. The included full-color instruction manual provides clear, step-by-step guidance through the assembly process. While the engine's construction is complex, the detailed instructions ensure excellent results for builders who approach the project with patience and attention to detail, resulting in a magnificent finished model that demonstrates real engineering principles.
The 5-Cylinder Radial Engine Model features a real electric motor housed within the starter motor casing that powers the entire assembly. Through specially designed viewing windows, you can observe the synchronized movement of the crankshaft, connecting rods, and pistons during operation. This creates not just a beautiful decorative piece but a dynamic simulation model that accurately demonstrates the operation of a real radial engine. With a 450mAh lithium battery providing up to 1.5 hours of continuous operation from a 2-hour charge, you can enjoy extended demonstrations of this impressive mechanical marvel.
The 5-Cylinder Radial Engine Model offers exceptional educational benefits for both young learners and adults:
While not recommended for unsupervised children under 14 due to small parts, this model provides an excellent opportunity for adults to work alongside younger enthusiasts, helping them understand illustrated instructions, properly handle parts and tools, and experience the satisfaction of completing a sophisticated engineering project. The assembly process fosters an appreciation for mechanical ingenuity while encouraging interest in technology and engineering fields.
The 5-Cylinder Radial Engine Model arrives packaged in a colorful, durable metal gift box that ensures safe delivery while providing an impressive presentation when given as a gift. This sophisticated model makes an ideal present for:
Whether for birthdays, holidays, graduations, or special occasions, this premium model delivers both an engaging assembly experience and a stunning display piece that will be treasured for years to come.
Material | Aluminum Alloy + Stainless Steel |
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Finish | Anodized |
Product Dimensions | 199 * 199 * 114mm |
Number of Parts | 230+ pieces |
Charging Voltage | DC 5V |
Lithium Battery Capacity | 3.7V, 450mAh |
Charging Time | 2 hours |
Working Time | 1.5 hours |
Assembly Time | Approximately 4 hours |
Assembly Difficulty | Level IV |
Packaging Dimensions | 342 * 242 * 150mm (Metal Gift Box) |
Gross Weight | 3.1kg |
Recommended Age | 14 years and above |
This model has a difficulty rating of Level IV, making it suitable for builders with some experience or beginners with patience and attention to detail. The comprehensive instruction manual guides you through each step of the process, and all necessary tools are included. The average assembly time is approximately 4 hours, though this may vary based on individual experience.
The 5-Cylinder Radial Engine Model is recommended for ages 14 and above, and younger builders should be supervised by an adult due to the small parts and complexity of assembly. However, it makes an excellent joint project between adults and teenagers interested in mechanics and engineering.
The built-in 3.7V, 450mAh lithium battery provides approximately 1.5 hours of continuous operation on a full charge. Recharging takes approximately 2 hours using the standard DC 5V charging connection.
This is a fully functional simulation model that accurately demonstrates the mechanical principles of a radial engine. When powered, you can observe the synchronized movement of the crankshaft, connecting rods, and pistons through special viewing windows, providing both educational value and visual appeal.
The 5-Cylinder Radial Engine Model represents the perfect blend of educational value, engineering precision, and aesthetic appeal. With over 230 premium parts crafted from anodized aluminum and stainless steel, this model delivers an authentic assembly experience that results in a functioning mechanical showcase. The transparent design elements allow you to observe the intricate movements of the engine components, making complex engineering principles accessible and engaging. Whether you're a collector, an engineering enthusiast, or looking for a meaningful educational project, this radial engine model offers exceptional quality and lasting value. Add this impressive mechanical marvel to your collection today!
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