---
product_id: 583653209
title: "Newtons Cradle Balance Balls Science Physics Gadget Desktop Decoration Kinetic Motion Toy for Home and Office(7 Beads)"
brand: "qlkunla"
price: "€ 61.93"
currency: EUR
in_stock: true
reviews_count: 13
category: "Qlkunla"
url: https://www.desertcart.ie/products/583653209-newtons-cradle-balance-balls-science-physics-gadget-desktop-decoration-kinetic
store_origin: IE
region: Ireland
---

# Smooth perpetual kinetic motion Solid beech wood frame 7 precision stainless steel balls Newtons Cradle Balance Balls Science Physics Gadget Desktop Decoration Kinetic Motion Toy for Home and Office(7 Beads)

**Brand:** qlkunla
**Price:** € 61.93
**Availability:** ✅ In Stock

## Summary

> ⚡ Master momentum, mesmerize your mind!

## Quick Answers

- **What is this?** Newtons Cradle Balance Balls Science Physics Gadget Desktop Decoration Kinetic Motion Toy for Home and Office(7 Beads) by qlkunla
- **How much does it cost?** € 61.93 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/583653209-newtons-cradle-balance-balls-science-physics-gadget-desktop-decoration-kinetic)

## Best For

- qlkunla enthusiasts

## Why This Product

- Trusted qlkunla brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Gift of Genius:** Ideal present blending fun, learning, and style for professionals & kids
- • **Physics in Action:** Visualize momentum & energy transfer live on your desk
- • **Educational & Engaging:** Perfect tool to spark curiosity in physics for all ages
- • **Sleek Office Statement:** Elevate your workspace with a classy, science-inspired decor
- • **Stress-Busting Kinetics:** Meditative swinging motion to boost focus and relieve tension

## Overview

Newton's Cradle Balance Balls feature 7 stainless steel spheres suspended on a solid beech wood frame, demonstrating the third law of motion and energy conservation through smooth, perpetual kinetic motion. This elegant desktop gadget doubles as a stress-relieving executive toy and an educational tool, making it a must-have for science enthusiasts and professionals seeking a stylish, interactive office accessory.

## Description

Product description Newtons Cradle: Newtoncradle demonstrates the third law of motion with swinging spheres; when oneball is lifted and released it sends force through the rest, pushing the endball in the opposite direction; these swinging kinetic balls are perfectaddition to your office desk decoration accessories or teaching tool at schools Specifications: Size: 5.7x5.7x4.7 in Material: Solid wood+ Fishing line+ Stainless steel balls &structure Occasions: Science Education supplies, Psychotherapy, Stress release,Leisure and entertainment, Birthday present, Holiday gifts, Business gifts Warm Prompt: 1.When you use thisnewton’s cradle, please move it in a horizontal line, so the lines will not betangled. 2.The ball in order from the outside to the inside, one by one from the inside of the foam to remove one by one, take special care not to tangle the line together! 3.If it was tangled,you could untangle it still with some patience and time, then you will fix it.It’s also a challenge for you, why not have a try? How to untangle it:Firstly, please figure out how the wires were tangled, then follow the wires tountangle it, and you can untangle it in few mins. Directions 1. When you use this Newton's cradle, please move it in a horizontal line, so the lines will not be tangled. 2. The ball in order from the outside to the inside, one by one from the inside of the foam to remove one by one, take special care not to tangle the line together! 3. If it was tangled, you could untangle it still with some patience and time, then you will fix it. It’s also a challenge for you, why not have a try? How to untangle it: Firstly, please figure out how the wires were tangled, then follow the wires to untangle it, and you can untangle it in few mins. P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); Safety Warning No applicable See more

Review: Good Item - Good item. Just what my 8 y.o, grandson wanted. He’s happy so I’m happy.
Review: A nice gift, well worth it - My son really loved this, it was one of his birthday gifts. It's stylish and delicate and looks nice on his desk.

## Features

- Gravity At Work :See before your eyes as the Newton Balls transfer fall and transfer weight across the gadget. Drop one ball or two balls. You can see the energy transfer in such an astounding way! Be sure to recognise Sold by Xinbaohong!
- Office Desk Decor :Show some character and express your love for science and physics with this decorating your office space. Can be meditative and fun to watch also!
- Educational & Classy :Experience the visual display of momentum. Use this in class and share with your friends and family the exciting world of physics and science!
- Perpetual Motion: The pendulum balls show the conservation of momentum and energy, creating perpetual motion,these swinging kinetic balls are perfect addition to your office desk decoration accessories or teaching tool at schools.
- Good Gift Idea: Suit for both kids and adults, excellent for learning science, killing boring time and releasing stress, which makes it a good present for birthday, holiday. Meanwhile, It’s not only a toy, but also a good desk decor. You can put it on your desk or shelf, and swing it anytime when you passing by, it will be a wonderful scenery in your home or office!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C7KRG6NP |
| Assembly Required | No |
| Batteries Required? | No |
| Batteries included? | No |
| Colour | Silver |
| Customer Reviews | 4.1 4.1 out of 5 stars (614) |
| Date First Available | 9 July 2023 |
| Educational Objective(s) | Understanding Momentum, Energy Conservation, and Third Law of Motion in Physics |
| Item model number | A-12 |
| Manufacturer recommended age | 36 months - 3 years |
| Material Type(s) | Beech |
| Product Dimensions | 16.99 x 11.94 x 14.81 cm; 1.17 kg |

## Product Details

- **Age range (description):** Adult,Kid
- **Brand:** QLKUNLA
- **Item dimensions L x W x H:** 17 x 11.9 x 14.8 centimetres
- **Size:** 5.7x5.7x4.7 inches
- **Theme:** Physics

## Images

![Newtons Cradle Balance Balls Science Physics Gadget Desktop Decoration Kinetic Motion Toy for Home and Office(7 Beads) - Image 1](https://m.media-amazon.com/images/I/61tPipkRoHL.jpg)
![Newtons Cradle Balance Balls Science Physics Gadget Desktop Decoration Kinetic Motion Toy for Home and Office(7 Beads) - Image 2](https://m.media-amazon.com/images/I/61TAnD48jzL.jpg)
![Newtons Cradle Balance Balls Science Physics Gadget Desktop Decoration Kinetic Motion Toy for Home and Office(7 Beads) - Image 3](https://m.media-amazon.com/images/I/61y-uX5xTvL.jpg)
![Newtons Cradle Balance Balls Science Physics Gadget Desktop Decoration Kinetic Motion Toy for Home and Office(7 Beads) - Image 4](https://m.media-amazon.com/images/I/61pipZDXdXL.jpg)
![Newtons Cradle Balance Balls Science Physics Gadget Desktop Decoration Kinetic Motion Toy for Home and Office(7 Beads) - Image 5](https://m.media-amazon.com/images/I/71wHDl1SrxL.jpg)

## Questions & Answers

**Q: Will this keep going all day with out stopping? I need it to keep going all day to trick my thermostat that there is someone home ?**
A: This isn't a perpetual motion device.  It will stop after about a minute. Friction has its way.

**Q: is the base wood some say it is not**
A: It's not wood, it's plastic.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good Item
*by S***N on 27 February 2026*

Good item. Just what my 8 y.o, grandson wanted. He’s happy so I’m happy.

### ⭐⭐⭐⭐⭐ A nice gift, well worth it
*by K***K on 10 January 2026*

My son really loved this, it was one of his birthday gifts. It's stylish and delicate and looks nice on his desk.

### ⭐⭐⭐⭐ Good
*by A***S on 5 November 2024*

Not top quality. But does what is supposed to do.

## Frequently Bought Together

- QLKUNLA Newtons Cradle Balance Balls Science Physics Gadget Desktop Decoration Kinetic Motion Toy for Home and Office(7 Beads) (7 Beads)
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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-12*