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Ships within 48 hours · Estimated delivery Jul 14 - Jul 19
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Description
Stirling Engine Generator Model Physics Science Experiment Kit STEM Toys - Lividity(Random Color of Bulb) Features: . Exquisite Appearence: The stirling engine model looks high end. Exquisite appearance with brilliant colors. . High Quality: The base is stable and steady. Heating cylinder and power cylinder are beautiful and durable. The piston does not wear out at high speeds for long periods of time. . Combination: The Stirling engine body is fitted with a small generator. Additionally equipped with alcohol lamp, 5V5W big bulb,
(Random Color of Bulb)Features:
.Exquisite Appearence: The stirling engine model looks high end. Exquisite appearance with brilliant colors.
.High Quality: The base is stable and steady. Heating cylinder and power cylinder are beautiful and durable. The piston does not wear out at high speeds for long periods of time.
.Combination: The Stirling engine body is fitted with a small generator. Additionally equipped with alcohol lamp, 5V5W big bulb, more interesting
.Interesting: Put the engine model on the horizontal and inject 2/3 alcohol into the alcohol lamp. Lit an alcohol lamp to preheat the cylinder for 30 seconds to 1 minute. The flywheel is assisted by hand to drive. Toggle the flywheel by hand, then the dry air expands to generate power to drive the flywheel to rotate rapidly, and light the bulb.
.Fuel: 95% alcohol should be used in the operation (not included), not water, kerosene, gasoline, lighter oil, liquor.
.Meaning and Value: The product has been assembled. You can operate directly, simple and convenient. By operating the engine, you would observe and know the operational process and more intuitive understanding of the operating principle of stirling engine, deepening your interest in physics; Its superior quality and exquisite appearance also make it of high collection value, which can be used as a high-end decoration or gift.
.Suitable for people over 12 years old
.Warm Tips: Be careful during operation.
Specifications:
.Color:Lividity
.Material: Metal
.Product Size: 16.5 x 9.5 x 9.5cm
.Product Weight: 400g
.Package Dimensions: 18 x 12 x 14cm
.Package Weight: 550g
.Packing: Carton Box
Package Content:
.1Set x Engine Model
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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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
4.3 ★★★★★
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Product Reviews
★★★★★ 5
Smooth skin without the post-shave itch
I’ve always had issues with my skin feeling super irritated after I shave my legs, so I started applying this Cyperus Rotundus oil right after hopping out of the shower. The quality of the blend is impressive—it’s got jojoba and almond oil too, so it feels very nourishing rather than just sitting on top of the skin. It absorbs quickly enough that I can put on my leggings and head to the gym without feeling like a greaseball.
The functionality as a hair inhibitor is a nice bonus. I’ve noticed the hair on my shins seems to be coming back a bit softer and less stubbly than before. For a 55 ml bottle, the value for money is solid since you only need a few drops to cover a large area. It’s a great find for anyone who deals with that annoying sandpaper feeling a day after waxing. My roommate even started using it on her arms because it’s fragrance-free and doesn't mess with her perfume.
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Reviewed in the United States on April 15, 2026
★★★★★ 5
Lightweight oil that fits into a simple routine
I started using this oil as part of my regular skincare routine, mainly applying it to areas like my arms and face after showering. The texture feels light and spreads easily without leaving a heavy residue. I noticed it absorbs fairly quickly, which makes it convenient for daily use. It also has a mild scent that is not overwhelming. I like that it includes plant based ingredients, and it leaves my skin feeling soft after application.
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Reviewed in the United States on April 30, 2026
★★★★★ 5
Refreshing orange scent
These are effective at refreshing your disposal. When I am done cleaning up my kitchen I put 2 drops in the disposal side of my sink and briefly pulse the disposal to break open the drop. Don't run any water as this will wash away the drop and the fresh orange scent. I am very sensitive to perfume or floral fragrances - these are just the right amount of orange scent to make your drain smell fresh without the scent overwhelming the kitchen.
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Reviewed in the United States on April 15, 2026
★★★★★ 5
Easy to use and work great
These are great. Helps with odors and grease cutting. So easy to just drop a couple in after use.
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Reviewed in the United States on March 13, 2026
★★★★★ 5
They smell AMAZING!!
Amazing quality, they smell great, and they last quite awhile! I like switching between the orange and lemon scents, as it’s nice to switch it up! A great price for the quantity and quality!
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Reviewed in the United States on February 12, 2026