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Description
Newtons Cradle Pendulum, Perpetual Motion Desk Toy, Swinging Kinetic Balls for Office Decor (7 x 7 x 6 in)Newton's Cradle demonstrates the third law of motion by showing the conservation of energy and momentum through swinging kinetic balls. When one ball is released, force is sent through the rest of the balls creating a perpetual motion. Display the Newton cradle on your desktop or in the classroom to teach young children about physics. Recommended for ages 5 years and up. Assembly acquired: simply insert the frame into the base. Newtons Cradle: Newton
Newton's Cradle demonstrates the third law of motion by showing the conservation of energy and momentum through swinging kinetic balls. When one ball is released, force is sent through the rest of the balls creating a perpetual motion. Display the Newton cradle on your desktop or in the classroom to teach young children about physics. Recommended for ages 5 years and up. Assembly acquired: simply insert the frame into the base.
- Newtons Cradle: Newton cradle demonstrates the third law of motion with swinging spheres; when one ball is lifted and released it sends force through the rest, pushing the end ball in the opposite direction; these swinging kinetic balls are perfect addition to your office desk decoration accessories or teaching tool at schools
- Perpetual Motion: The pendulum balls show the conservation of momentum and energy, creating perpetual motion that is ideal for desktop display
- Reliable Quality: Our newton's cradle desk toy is made with stainless steel bars, the balls have a reflective mirror finish, and the base is a lightweight plastic
- Dimensions: The desk balls pendulum stand measures 7 x 7 x 6 inches
- What's Included: Includes 1 Newtons cradle to add to your desk knick knacks and accessories
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
4.3 ★★★★★
Based on 24 reviews
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Product Reviews
★★★★★ 5
Great shelves
Color: Light Brown, Size: 4, Color: Light Brown, Size: 4
These are cute and easy to install. They were the perfect size for the location. I did use other drywall mounts to make sure they were more likely to stay in but after I installed they feel sturdy and reliable.
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Reviewed in the United States on October 14, 2025
★★★★★ 5
Great Product
Color: Brown, Size: 4
Love them! They’re fairly priced and can hold a lot of weight! Make the space look great!
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Reviewed in the United States on March 25, 2026
★★★★★ 3
Different mounting mechanism than photos
Color: Light Brown, Size: 4, Color: Light Brown, Size: 4
I'm going to start off this review by stating that the mounting mechanism used on the Shelf is different than the one shown in the photo. In the photo, it shows a single bar which would have made the Shelf easier to level however, the product I received has two separate bars which means I have to be extra careful holding a level against the paper. Stencil. The reason I chose this product over different listings was because for a dollar or two more its photo showed a single bar.
Now for the pros and cons:
Pros:
Accurate measurement.
Shelf appears to be actual wood! The photos made it looks like a veneer, which it is not.
Easy to install.
Includes good instructions.
Seems like it can hold items fairly well.
Cons:
The mounting hardware for drywall pretty flimsy, and I stripped out some of the drywall anchors during install. They still worked, but it was annoying to finish inserting them.
The shelf doesn't sit fully flush to the wall from factory as the screws included make it protrude slightly. I can fix this with my dremel, However, This could have been solved from the factory by making the cavity slightly deeper.
As mentioned above in my main detractor, it is a two bar mounting system rather than a one bar, which was shown in the photo.
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Reviewed in the United States on October 21, 2024
★★★★★ 4
Pleased overall
Color: Light Brown, Size: 4
They have an unfinished feel, and the underside screws used to hold the shelf on the poles strip out really easy. Tighten those by hand and with care. Other than that, they look great and were easy to install. Came with a full set of hardware including anchors for various wall types. Stable enough to hold small to medium sized Lego sets (don't try to put Lego Hogwarts size kits on them--not big enough). Bought 3 sets of 4 and used others as Book shelves. They work very well for novel size or paperback sized books. Just make sure you anchor them well into the wall. These will only be as good as the installation.
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Reviewed in the United States on December 4, 2025
★★★★★ 5
Nice and Inexpensive!
Color: Light Brown, Size: 4, Color: Light Brown, Size: 4
Thé shelves are good quality and easy to hang. Thé instructions do leave a bit to be desired as they misidentify which anchor to use for dry wall. I followed instructions for the first shelf and it was not very stable. I switched to the other anchors and it was great. All hardware in included. These require minimum size holes in your wall, but it is a floating shelf so be prepared to patch when you take them down. It’s a set of 4 so a good value!
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Reviewed in the United States on June 22, 2025
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