---
product_id: 474184292
title: "QLKUNLA Newtons Cradle Balance Balls Science Physics Gadget Desktop Decoration Kinetic Motion Toy for Home and Office"
brand: "qlkunla"
price: "$119"
currency: NZD
in_stock: true
reviews_count: 13
category: "Qlkunla"
url: https://www.desertcart.nz/products/474184292-qlkunla-newtons-cradle-balance-balls-science-physics-gadget-desktop-decoration
store_origin: NZ
region: New Zealand
---

# Perpetual kinetic motion Solid beech wood base Demonstrates momentum transfer QLKUNLA Newtons Cradle Balance Balls Science Physics Gadget Desktop Decoration Kinetic Motion Toy for Home and Office

**Brand:** qlkunla
**Price:** $119
**Availability:** ✅ In Stock

## Summary

> ⚡ Swing into science — where style meets momentum!

## Quick Answers

- **What is this?** QLKUNLA Newtons Cradle Balance Balls Science Physics Gadget Desktop Decoration Kinetic Motion Toy for Home and Office by qlkunla
- **How much does it cost?** $119 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/474184292-qlkunla-newtons-cradle-balance-balls-science-physics-gadget-desktop-decoration)

## 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:** A thoughtful present blending fun, decor, and science for colleagues, friends, or family.
- • **Physics in Motion:** Visualize Newton’s third law with every swing—energy transfer you can see and feel.
- • **Educational & Engaging:** Perfect for professionals and educators to inspire science conversations and learning.
- • **Sleek Office Statement:** Elevate your workspace with a classy, meditative desk accessory that sparks curiosity.
- • **Stress-Busting Kinetics:** Turn idle moments into mindful breaks with mesmerizing perpetual motion.

## Overview

The QLKUNLA Newtons Cradle is a premium desktop kinetic toy crafted from solid beech wood and stainless steel balls, designed to demonstrate the conservation of momentum and energy. Compact and battery-free, it serves as both an elegant office decoration and an educational tool, perfect for professionals and educators seeking a stylish way to showcase physics principles while reducing stress.

## 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. Safety Warning no

Review: Perfect gift! - Quality was great for the price, solid foundation so it continues to function well now. Size is great for popping on a desk .
Review: It didn’t broken in 5 minutes - It’s good made

## 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!
- 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 | B0B253HMYK |
| Assembly Required | No |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 30,403 in Toys & Games ( See Top 100 in Toys & Games ) 367 in Educational Science Kits |
| Colour | Silver and Brown |
| Customer Reviews | 4.0 4.0 out of 5 stars (1,221) |
| Date First Available | 4 Jun. 2022 |
| Educational Objective(s) | Illustrate physical principles (energy and impulse conservation) |
| Item model number | A-09 |
| Manufacturer recommended age | 3 years and up |
| Material Type(s) | Beech |
| Number of Game Players | 1 |
| Product Dimensions | 14.22 x 11.94 x 14.48 cm; 508 g |
| tech_spec_battery_description_toys | No batteries required |

## Product Details

- **Age range (description):** Adult
- **Brand:** QLKUNLA
- **Item dimensions L x W x H:** 14.2 x 11.9 x 14.5 centimetres
- **Size:** 5.7x5.7x4.7 in
- **Theme:** Physics

## Images

![QLKUNLA Newtons Cradle Balance Balls Science Physics Gadget Desktop Decoration Kinetic Motion Toy for Home and Office - Image 1](https://m.media-amazon.com/images/I/61XyO69K0ML.jpg)

## Available Options

This product comes in different **Edition** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect gift!
*by N***E on 20 October 2024*

Quality was great for the price, solid foundation so it continues to function well now. Size is great for popping on a desk .

### ⭐⭐⭐⭐⭐ It didn’t broken in 5 minutes
*by D***. on 4 January 2026*

It’s good made

### ⭐ Absolutely terrible. Complete waste of time and money
*by A***R on 19 October 2024*

Item was delivered and put together. The motion lasted around 15 seconds before stopping. After about using it 6 times it became completely tangled up and couldn't be untangled. I had no option but to throw it away. Complete waste of time and money.

## Frequently Bought Together

- QLKUNLA Newtons Cradle Balance Balls Science Physics Gadget Desktop Decoration Kinetic Motion Toy for Home and Office
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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-03-13*