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I’ve always wanted a Newton’s cradle for my desk. In movies there’s always one clicking away on the big boss’s desk, and the Smilesorg Newton’s cradle gives my desk at home the same look. This was sent to me to try.
It looks sharp, and it gives my brain somewhere to go when it’s done for the day.
Quick Verdict
- Buy it if: you want the corner office look on your desk
- Skip it if: it’s going where kids will grab it, or you share a silent office
- My favorite feature: the two-at-once trick
- Would I buy again? Yes
Does it look like the Newton’s cradle on the boss’s desk?
Yes. The curved steel frame and the light wood base look like the one I always pictured. On my desk it looks professional, not like a toy.
All of it feels high quality, from the frame down to the base.

Smilesorg Newton’s Cradle Desk Gadget
Chrome balls on clear strings, hung from a curved steel frame on a wood base. I tested the 7-ball version, which isn’t sold right now, so this button goes to the 5-ball version of the same cradle.
Smilesorg Newton’s cradle specs and what’s in the box
- Brand: Smilesorg
- Balls: 5 on the version sold now (mine is the 7-ball model A-07)
- Base: Wood
- Size: 7.7 x 4.6 x 5.8 inches
- Weight: About 1.2 pounds
- In the box: The cradle, a dust cloth, and an instruction card
- Age: 3 and up
- Power: None
Who the Smilesorg Newton’s cradle is for
Anyone who works at a desk and hits the point in the afternoon where they’re burnt out and their brain is over it. Giving it a swing and watching it go is an easy way to zone out for a minute. For the rest of the desk, I keep supplies off the top with a clamp-on desk organizer, and a neck and shoulder massager helps after long desk days.
It also makes a good gift for someone with a home office or anyone who likes science.

Unboxing and setting up the Smilesorg cradle
It came packed carefully, with an instruction card. There’s not really any setup. You take the packing material off slowly and carefully, and it’s ready.
The card diagrams four types of collisions. That was handy, since it had been a while since I’d played with one of these, and it gave me a few patterns to try right away.

Two things that stood out on my desk
- It’s soothing: The swing and the click are fun and almost calming to watch and listen to. Something like this helps my concentration when I’ve hit a wall.
- Two balls at once: Pull back two, and two swing out the other side. It’s an easy way to see Newton’s law of momentum in action.
What I liked about the Smilesorg cradle
- It comes with a little cloth for wiping it down
- It looks as good sitting still as it does swinging
What to know before you buy a Newton’s cradle
- The strings are thin and clear, and they can tangle, so handle it gently.
- It isn’t quiet. In a silent shared office, the people around you will hear it.
Smilesorg Newton’s cradle questions
Does a Newton’s cradle need batteries?
No. It runs on the swing you give it, nothing else.
What do I do if a Newton’s cradle gets tangled?
Work it loose slowly by hand. The lines are hard to see, so good light makes it easier.
Is a Newton’s cradle safe for kids?
Not for kids under 3, since the small parts are a choking hazard. Older kids can have it as a desk piece, not a toy to play rough with.
Other desk toys to compare
- The Swinging Sticks Desktop Kinetic Energy Sculpture: No balls and no strings. Two aluminum sticks swing and spin on battery power (4 AA, not included) and keep moving on their own, and it’s nearly silent instead of clicking. It’s 13.8 inches wide and 14.9 inches tall.
- DEWIN Mini Newton Cradle: A much smaller cradle, about 3.5 inches tall, with steel bars on a lightweight plastic base instead of wood.
Did the Smilesorg cradle earn a spot on my desk?
Yes, and it’s staying.
If your desk could use one, this is the one I’d get.
Where To Buy
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