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Description
Propeller Aircraft Head Shape Pocket Stirling Engine Model ToyPropeller Aircraft Head Shape Stirling Pocket Engine Model Toy Features: . The propeller head is cool and beautiful in appearance. Selected high quality materials, made of brass and glass. . Transparent glass base, high end atmosphere. . The overall polishing is meticulous, the color is bright, it is not easy to rust and fade, and the dual combination of texture and beauty is realized. . During operation, put the engine model in a horizontal position,
Propeller Aircraft Head Shape Stirling Pocket Engine Model ToyFeatures:
.The propeller head is cool and beautiful in appearance. Selected high-quality materials, made of brass and glass.
.Transparent glass base, high-end atmosphere.
.The overall polishing is meticulous, the color is bright, it is not easy to rust and fade, and the dual combination of texture and beauty is realized.
.During operation, put the engine model in a horizontal position, inject alcohol into the alcohol lamp, and ignite the alcohol lamp on the premise of ensuring safety.
.The alcohol lamp heats the piston tube, and the dry burned air expands to generate power. At the same time, the flywheel is turned by hand to help the flywheel rotate rapidly.
.Use 95% alcohol (provided by yourself) during the operation, and do not add water, kerosene, gasoline, lighter oil, or liquor.
.Entertaining and entertaining, through hands-on operation, you can observe the entire Stirling engine running process, understand the Stirling starting principle more intuitively, and deepen your interest in physics.
.The product itself has been assembled and can be used directly. At the same time, its superior quality and exquisite appearance also make it have a high collection value and can be used as a high-end gift.
.The product is suitable for people over 14 years old.
.Tips: Be careful not to get burnt by high temperature during operation.
Specifications:
.Color: As Shown
.Material: Stainless Steel + Glass + Wood
.Product Weight: 300g
.Package Dimensions: 8 x 8 x 12cm
.Package Weight: 400g
.Packing: Box
Package Content:
.1 x Stirling Engine Model Toy
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 6 reviews
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Product Reviews
★★★★★ 4
Just have to be careful not to take more than one per night or else wake up feeling like have a hangover
Size: 200 Count (Pack of 1)
Definitely works for me. Just have to be careful not to take more than one per night or else wake up feeling like have a hangover. Works great for me but not as well for my stepmother. She has severe insomnia and has been on sleeping medications for years. She tried taking this to go a more natural route but did not even affect her.
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Reviewed in the United States on January 9, 2018
★★★★★ 5
surprised!
I actually didn't realize I had ordered "time released" version. I thought these were just normal melatonin. But now that I've tried these, I love them so much better than the regular version! Helps me sleep better through the night. No taste, love this brand of Source Naturals.
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Reviewed in the United States on October 17, 2025
★★★★★ 5
The only one I'll use!
As the title says, this is the brand to get!! It's fast-acting, doesn't give me weird dreams like some do, and I never wake up feeling groggy.
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Reviewed in the United States on March 13, 2025
★★★★★ 5
Works wonders
I've been buying these for well over a year now as Subscribe and Save. I work 12 hour overnights as a nurse. My sleep schedule normally gets messed up. I would have no problem falling asleep but would wake up only a few hours later which is not good when you have work again that night. We buy these on Amazon due to the great price and the fact that they are extended release which helps keep me asleep longer. When I take 1 or 2 of them, I am able to sleep about 7-8 hours which is great. I take this both when I sleep during the day and sleep during the night. It helps me sleep no matter when and I am able to adjust my sleep schedule often. I have recommended them to many.
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Reviewed in the United States on January 10, 2013
★★★★★ 4
Works quite well, dose still a bit high for me
Used to take the Natrol 5mg slow release, now that I can compare these 2, I love this more. It doesn't make me feel too edgy, it's quite relaxing actually. I still have to halve the dose as the full dose makes me groggy the next day. Where the Natrol gave me very vivid, but not unpleasant dreams, these don't make me dream as vividly. It does take a bit longer to get me to sleep, but once asleep, your asleep. Highly recommend, once I finish this bottle, I'd get the 2mg tr next time, as a lower dose works better for me.
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Reviewed in the United States on July 10, 2014
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