--- 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: "374.90 DT" currency: TND in_stock: true reviews_count: 13 category: "Qlkunla" url: https://www.desertcart.tn/products/583653209-newtons-cradle-balance-balls-science-physics-gadget-desktop-decoration-kinetic store_origin: TN region: Tunisia --- # Solid beech wood frame Compact 5.7x5.7x4.7 inch size 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:** 374.90 DT **Availability:** ✅ In Stock ## Summary > ⚡ Swing into brilliance with every click — physics never looked this cool! ## 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?** 374.90 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/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:** A thoughtful, classy gift that blends fun, learning, and sophistication for colleagues and family alike. - • **Physics in Motion:** Experience the mesmerizing transfer of momentum and energy with every swing. - • **Educational Powerhouse:** Perfect for managers and lifelong learners to demonstrate Newton’s third law in a captivating way. - • **Sleek Office Statement:** Elevate your workspace with a stylish, science-inspired desktop decor that sparks conversation. - • **Stress-Relief Kinetics:** Turn idle moments into calming, meditative breaks that boost focus and reduce stress. ## Overview The Newton's Cradle Balance Balls feature 7 polished stainless steel spheres suspended on durable fishing lines within a solid beech wood frame. Measuring a compact 5.7x5.7x4.7 inches, this kinetic desktop toy visually demonstrates momentum, energy conservation, and Newton’s third law of motion. Ideal for office decor, stress relief, and educational use, it’s a stylish, interactive piece that captivates and inspires curiosity in any professional or home setting. ## 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. Safety Warning No applicable Review: Good Item - Good item. Just what my 8 y.o, grandson wanted. He’s happy so I’m happy. Review: Its physics. - It goes click clack...does what its meant to and the stand is flat so no issues. Theres no way to gussy a newton's cradles up. Its basic physics and honestly whole some find it annoying I find it relaxing. It also confused my dog for about an hour. Scared the cat tho lol ## Features - Warning:Not suitable for children under 3 years. For use under adult supervision - 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 | | Age Range Description | Adult,Kid | | Age range (description) | Adult,Kid | | Brand | QLKUNLA | | Brand Name | QLKUNLA | | Country Of Origin | China | | Customer Reviews | 4.1 out of 5 stars 672 Reviews | | Educational Objective | Understanding Momentum, Energy Conservation, and Third Law of Motion in Physics | | Included Components | Newton's pendulum X1 | | Is Assembly Required | No | | Item Dimensions | 17 x 11.9 x 14.8 centimetres | | Item Type Name | Newtons Cradle Balance Balls | | Item Weight | 1.17 Kilograms | | Item dimensions L x W x H | 17 x 11.9 x 14.8 centimetres | | Item weight | 1.17 Kilograms | | Manufacturer | QLKUNLA | | Manufacturer Part Number | A-12 | | Manufacturer Warranty Description | 1 | | Material Type | Beech | | Maximum Age Recommendation | 36 | | Minimum Age Recommendation | 36 | | Model Number | A-12 | | Set Name | 7 | | Size | 5.7x5.7x4.7 inches | | Theme | Physics | | Unit Count | 1.0 count | ## 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. ### ⭐⭐⭐⭐⭐ Its physics. *by L***O on 24 April 2026* It goes click clack...does what its meant to and the stand is flat so no issues. Theres no way to gussy a newton's cradles up. Its basic physics and honestly whole some find it annoying I find it relaxing. It also confused my dog for about an hour. Scared the cat tho lol ### ⭐⭐⭐⭐ Very good toy or fun ornament *by B***Y on 9 April 2026* It's ok for the price. Not high precision but good enough as a child's/teenager's toy or for general fun use. I didn't have any packaging problems: it was very well packed and everything was held in place by solid foam blocks, with no chance of the wires becoming entangled or anything, if unpacked sensibly. ## Frequently Bought Together - QLKUNLA Newtons Cradle Balance Balls Science Physics Gadget Desktop Decoration Kinetic Motion Toy for Home and Office(7 Beads) (7 Beads) - JOEYANK Fidget Cube New Version Fidget Finger Toys - Metal Infinity Cube Prime for Stress and Anxiety Relief/ADHD, Ultra Durable Sensory Gifts for Adults and Teens Kids - Fidget Toys Adult, Gravity Defying Kinetic Desk Toy, Metal ADHD Silent Fidget Toy Spinner, Balance Desk Toys for Office for Adults, Party Favors, Birthday (Gray-Rose Gold Ball) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/583653209-newtons-cradle-balance-balls-science-physics-gadget-desktop-decoration-kinetic](https://www.desertcart.tn/products/583653209-newtons-cradle-balance-balls-science-physics-gadget-desktop-decoration-kinetic) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-06-02*