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Description
Balance Stirling Generator Education Model DIY Steam STEM ToyBalance Stirling Generator Education Model DIY Steam STEM Toy Features: . Innovative design concept, rigorous production process. The Stirling principle is used to produce a small model of education and entertainment, which requires only a small alcohol lamp to be powerful and turn quickly. . The bottom plate is made of brushed aluminum alloy, and the flywheel is made of aluminum alloy. The connecting rod is made of stainless steel and the connecting
Balance Stirling Generator Education Model DIY Steam STEM ToyFeatures:
.Innovative design concept, rigorous production process. The Stirling principle is used to produce a small model of education and entertainment, which requires only a small alcohol lamp to be powerful and turn quickly.
.The bottom plate is made of brushed aluminum alloy, and the flywheel is made of aluminum alloy. The connecting rod is made of stainless steel and the connecting sleeve of power cylinder is made of aluminum alloy.
.The heating cylinder is specially designed to be made of thickened glass, which has no pressure even if heated for a long time.
.The product is exquisite and beautiful, the design is novel and unique, the simple sense and the aesthetic double combination, can give a person a kind of creation idea. Each time it is activated, the heart will be quiet, infinite reverie, inspiration from a continuous spurt. As the flywheel rotates, people can enjoy the joy of creating power while being enlightened to the expandable space, and enter into the creation of an energy technology in an invisible way. It can be used as furnishings, cafes, restaurants, bars, storefronts, offices, etc.
.The product is suitable for people with a certain degree of patience and hands-on ability. It can exercise children's hands-on and cerebral and spatial imagination ability, help them understand the principle of Stirling engine, more intuitively cultivate children's interest in physics, and more easily increase knowledge. .The product is suitable for children over 8 years old. Children under 8 years old need to operate under the supervision of their parents. Products are great for birthdays, Christmas, baby showers, Thanksgiving, back-to-school, valentine's day, great gifts for boys, girls, friends, family, and teachers.
.Product parameters: Flywheel diameter: 60mm; Diameter of driving wheel: 25mm; Inner diameter of power cylinder: 13mm; Piston stroke: 15mm; Generation voltage: 3-5v
.Note: In order to avoid transportation damage, quartz glass parts are packaged in the form of parts package. They are not directly installed. You need to do the simple installation before running according to the picture. The installation method is very simple. The installation can be completed with reference to shopping main diagram
Specifications:
.Color: As Shown
.Material: Stainless steel+ Aluminum Alloy + Reinforced Glass
.Product Size: 16.5*9.5*13cm
.Product Weight: 800g
.Package Dimensions: 22*18*15cm
.Package Weight: 1057g
.Packing: Carton
Package Content:
.1 x Stem Toy with alcohol lamp
.1 x English Instruction Manual
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
4.6 ★★★★★
Based on 6 reviews
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Product Reviews
★★★★★ 5
Great buy
Size: 11, Color: Tan
Great fit comfortable look good
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Reviewed in the United States on May 12, 2026
★★★★★ 5
Great shoes
Size: 14 Wide, Color: Black
My shoes look good and feel good and now I’m going to purchase the brown pair I saw
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Reviewed in the United States on April 24, 2026
★★★★★ 4
Don’t buy for restaurant industry
Size: 10.5, Color: Black, Size: 10.5, Color: Black
Good looking shoes, fairly comfortable and good value based on the description shared, so I don’t feel it’s fair to rate them lower than 4 stars. I had high hopes for them based on previous reviews from others saying they wore them in the food and beverage industry that mentioned their quality and durability, however I strongly recommend looking elsewhere if you do. I purchased these to wear working in a full service upscale restaurant and in less than two months have managed to have torn the material on the middle exterior section and the bottoms of the shoes are already completely worn down. Good design, but the durability needs to be improved if they’re to hold up for that industry.
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Reviewed in the United States on July 18, 2025
★★★★★ 1
DO NOT BUY (lasted less than 7 months)
Size: 11, Color: Black, Size: 11, Color: Black
I bought these for work as a bartender in August of 2025. By December, the tops were scuffed, frayed, and peeling beyond repair, and by February, the soles were coming off. I’ve never had a pair of shoes with such low quality.
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Reviewed in the United States on April 11, 2026
★★★★★ 5
Most comfortable shoes, right out of the box!
Size: 8.5, Color: Cognac Napa Leather
Oh my! So, my ordering of shoes online has been hit or miss - 1/2 size too big or too small; too wide or not wide enough. Enter these Marc Joseph shoes… such a game changer. They fit like a glove, exceptionally comfortable, and easy to slip in and out of. I like them so much that I am shopping for another pair. So far, the size, quality, fit, feel, look, and comfort make this pair my dedicated first pick. Btw, I have been wearing them for six hours and they are still very comfortable! I highly recommend these shoes.
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Reviewed in the United States on September 28, 2025