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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23
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Description
Low Temperature Stirling Engine Kit Model Physics Experiment ModelFeatures: . The body is made of one piece aluminum alloy material, which is sturdy and durable. It has an aluminum alloy base to reduce air leakage, higher precision, smooth use, worry free and durable, and the texture and appearance are superior. After assembly, the flywheel is not easy to deflect, and the integrated flywheel can not run. Bias phenomenon . Easy to assemble, even novices know how to assemble, reducing the failure rate and increasing
Features:.The body is made of one-piece aluminum alloy material, which is sturdy and durable. It has an aluminum alloy base to reduce air leakage, higher precision, smooth use, worry-free and durable, and the texture and appearance are superior. After assembly, the flywheel is not easy to deflect, and the integrated flywheel can not run. Bias phenomenon
.Easy to assemble, even novices know how to assemble, reducing the failure rate and increasing stability
.Instructions for use: The base of the machine is made of aluminum alloy. The base is 10 cm in diameter. The cup (the diameter of the cup is less than or equal to 10 cm, so that Sterling does not fall) is filled with hot water (the water temperature can't be lower than 65 degrees, the machine base) At least 50 degrees to run), the hot water level is close to the mouth of the cup, which will make the Stirling base heat faster. Preheating for about 1 minute, turn the flywheel by hand, the machine can run by itself
.Note: It is forbidden to bake for a short time and it can be operated. Long time, poor temperature control will cause the rubber between the base and the fuselage to leak. It can not be soaked in hot water. It will also cause the rubber to leak out. The heat source cannot be iron cobalt nickel because the magnet in the middle of the sponge piston is magnetic. The material will suck and cause the machine to not turn
.The product is suitable for people over 8 years old. Under 13 years old, it needs to be used under the supervision of adults.
Specifications:
.Color: As Shown
.Material: Aluminum Alloy + Acrylic + Graphite + Sponge + Brass + Stainless Steel
.Product Dimensions: 16*16*16cm
.Product Weight: 195g
.Package Dimensions: 10*10*11.5cm
.Package Weight: 250g
.Packing: Carton
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.
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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
4.8 ★★★★★
Based on 15 reviews
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Product Reviews
★★★★★ 5
amazing
Color: Large Set of 4
good buy worked well
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Reviewed in the United States on April 13, 2026
★★★★★ 4
3.5, Not 3.0
Color: Medium Set of 6
These balls were almost exactly what I needed. I was replacing my boy’s favorite ball, which is the 3” squeaky, spikey ball that fits in the chuck it launcher. Unfortunately I saw the shiny object next to it and because there were SIX balls and a dollar less, I failed to see that these are 3.5” balls instead of 3”…. Great balls but no fitty in the slingy. Buyer beware. No chuck it no problem. Save a buck.
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Reviewed in the United States on March 9, 2026
★★★★★ 5
MY CHIHUAHUA LOVES THESE BALLS!!
Color: Samll Set of 8
My little chihuahua, BamBam, is addicted to balls, especially little balls that squeak! However, any balls that have material on them, BamBam will tear them apart, swallow the material and then get an upset tummy! These balls saved the day! BamBam LOVES them & she cannot tear them apart! They hold up so well! No matter how much BamBam plays with them, they keep squeaking away!
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Reviewed in the United States on July 15, 2025
★★★★★ 5
Great thick squeaky ball
Color: Large Set of 2
These are good thick rubbery squeaky balls. My boy loves them! He's 75lbs. Strong chewer. I hav hard time squeezing to squeak, but he doesn't... He loves it!!!
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Reviewed in the United States on March 24, 2026
★★★★★ 5
Squeaky ball
Color: Large Set of 4
Perfect squeaky ball. Dogs love them. I love that they're durable and their thickness aids their durability. My Great Dane will play alone for hours with a ball.
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Reviewed in the United States on June 20, 2025