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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23
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Description
Engino Discovery Stem - Simple MachinesSIMPLE MACHINES MECHANISMS STEM KIT INCLUDES 5 different STEM sets, all combined into one fantastic package. BUILD 60 MODELS that cover the subjects of levers, the wedge, the wheel and axle, the screw, the inclined plane, the pulley, as well as the more advanced gears and linkages. Imagine the excitement of seeing their own creations come to life, all while learning about the laws of physics and engineering. EASY TO FOLLOW INSTRUCTIONS and it comes
- SIMPLE MACHINES MECHANISMS STEM KIT INCLUDES 5 different STEM sets, all combined into one fantastic package.
- BUILD 60 MODELS that cover the subjects of levers, the wedge, the wheel and axle, the screw, the inclined plane, the pulley, as well as the more advanced gears and linkages. Imagine the excitement of seeing their own creations come to life, all while learning about the laws of physics and engineering.
- EASY TO FOLLOW INSTRUCTIONS and it comes with 70 pages of theory and facts, accompanied by fun experiments to test newly acquired knowledge. Plus, a 16-page quiz section is included to test the children's understanding.
- FOR KIDS 9 and up, the STEM building toy also comes with a cutting-edge, interactive 3D app that lets children build in virtual reality. And it's not just us who think this toy is amazing - it's been chosen as one of the 21 best STEM toys and gadgets to get kids interested in tech.
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
4.1 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 5
Awesome Vent Mount That Actually Stays Put
Color: Black
These vent clips are awesome. Setup was fast and easy, and it holds the phone very securely without bouncing around while driving. I also like that it has a 360° adjustment so you can get the angle right, and it doesn’t block the airflow like a lot of other vent mounts. Overall, it works great and does exactly what it’s supposed to.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 17, 2026
★★★★★ 4
Great attachment and sturdy
Color: Black
This item is great! The mount to the vent is secure.
The only issue I have is when I want to move the arm to a different position, you have to unscrew the mount, and sometimes it comes undone and I have to attach to the vent again once I get it in the correct position. It could be because of my narrow vent though.
It also jiggles a little on bumpy roads, but that is to be expected with something that extends so far.
I like that the part that holds the phone doesn't cover the camera, so I can actually take a photo of the road with it.
I would definitely recommend and/or buy this again.
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Reviewed in the United States on May 12, 2026
★★★★★ 5
Excellent product
Color: Black
Works great. Easy to assemble, phone is secured firmly, doesn't block vent. It is as described.
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Reviewed in the United States on April 28, 2026
★★★★★ 5
Buy it! You won't regret it!
Color: Black
I was unsure of this holder since I live in the mountains, and drive on rough roads daily. This is by far the best phone holder I have used! It self adjusts on the bumpy roads, but thats expected. On city roads, it works perfectly! My phone is on the larger side, and it holds its weight just fine.
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Reviewed in the United States on April 22, 2026
★★★★★ 3
Air vent is not blocked
Color: Black
It doesn’t hold the phone tightly I had to change the part where u put the phone other than that it does not block the air vent
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Reviewed in the United States on May 26, 2026
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