--- product_id: 633752367 title: "CERROPI Large Newtons Cradle Pendulum with 7 Balls, Physics Perpetual Motion Desk Toys for Office, Calm Down Fidgets, 50+ Sec Swingtime (Beech Base)" brand: "cerropi" price: "HK$1530" currency: HKD in_stock: true reviews_count: 5 category: "Cerropi" url: https://www.desertcart.hk/products/633752367-cerropi-large-newtons-cradle-pendulum-with-7-balls-physics-perpetual store_origin: HK region: Hong Kong --- # 50+ sec swingtime 8mm chromed steel bars 1 year warranty with replacements CERROPI Large Newtons Cradle Pendulum with 7 Balls, Physics Perpetual Motion Desk Toys for Office, Calm Down Fidgets, 50+ Sec Swingtime (Beech Base) **Brand:** cerropi **Price:** HK$1530 **Availability:** ✅ In Stock ## Summary > ⚖️ Balance your workspace with timeless style and science. ## Quick Answers - **What is this?** CERROPI Large Newtons Cradle Pendulum with 7 Balls, Physics Perpetual Motion Desk Toys for Office, Calm Down Fidgets, 50+ Sec Swingtime (Beech Base) by cerropi - **How much does it cost?** HK$1530 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/633752367-cerropi-large-newtons-cradle-pendulum-with-7-balls-physics-perpetual) ## Best For - cerropi enthusiasts ## Why This Product - Trusted cerropi brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Gift-Ready Elegance:** Arrives in exquisite, protective packaging—ideal for impressing colleagues or loved ones on any occasion. - • **Worry-Free Longevity:** Includes a 1-year warranty plus replacement parts and cleaning cloth to keep your desk centerpiece flawless. - • **Endless Momentum Mastery:** Experience mesmerizing 50+ seconds of smooth, perpetual motion that captivates and calms. - • **Stress-Busting Executive Toy:** Perfectly designed to relieve office stress while boosting focus and creativity during your workday. - • **Premium Industrial Craftsmanship:** Built with 8mm chromed steel and 20mm bearing steel for unmatched durability and sleek aesthetics. ## Overview The CERROPI Large Newton's Cradle features 7 perfectly aligned chromed steel balls suspended on a beech wood base, engineered for over 50 seconds of smooth swinging. Crafted with premium materials and nano-technology for durability, it serves as both a sophisticated desk toy and an educational tool demonstrating momentum and energy conservation. Ideal for stress relief, office décor, and gifting, it includes a 1-year warranty with replacement parts and arrives in elegant, protective packaging. ## Description Product Description Review: Attractive, very well built. Great way to demonstrate kinetic energy - Excellent quality and packaging protected it. I bought this for the conceptual Physics class in our home school curriculum. The kids love it. Highly recommended. Review: Made with care. Packaged with care. Delivered with care. - Made with care. Packaged with care. Delivered with care. This is solid quality. It’s heavy and feels durable. Shipping was fast and is worth every penny spent. It was very easy to take out even though it was packaged very carefully with each ball in its own compartment and wrapped. It even came with an extra ball and string. Although it came with instructions, I was too excited to read, its easy enough that you can get it out and going without needing the instructions. I took my time and was careful not to twist or tangle anything. I don’t see this as a toy or something for small kids to play with as the strings are delicate and can get tangled if not treated with care. It looks good on my desk at work and from time to time I get it moving. It doesn’t last very long, but the sound is soothing. Spend the money and get it! ## Features - 【SCIENTIFIC DESIGN】-CERROPI newton's cradle adopt scientific design,keep the pendulum balls perfectly lined up,make it possible to swing 50s+. Perfect demonstration of the scientific law of momentum conservation and energy conservation - 【SUPERIOR QUALITY】-Our newtons cradle made of 8mm chromed metal steel bar, 20mm bearing steel,high-impact nylon, ultra-thin nano technology provide extremely durable oscillatory support, durable for long time use.Pursuit of craftsmanship spirit inspired us to continuously produce high-quality goods - 【WIDE APPLICATION】-This newton balls can be used as office desk gadgets toys to relieve stress; as teaching aid,teaching science intuitively; as toys for family activities, to inspire your child's creativity - 【EXQUISITE PACKEGING】-We use individual wrapping paper to protect each ball and secure it in foam shockproof material,Perfect for Christmas gifts, Thanksgiving gifts, birthday gifts,Mother's Day gift,Father's Day gift,Valentine's Day gift etc. - 【WARRANTY & NOTICE】- 1 YEAR warranty, If any piece breaks we send replacement balls, strings and plug to you. Messages reply within 12 hours. NOTE: clean the ball thoroughly before using for the longer swing time,one extra ball and a silky soft cleaning cloth are included in the package ## Technical Specifications | Specification | Value | |---------------|-------| | Age Range Description | Adult/Kid | | Asin | B07Y5S5YWR | | Battery Types | No batteries required | | Best Sellers Rank | #62,781 in Toys & Games (See Top 100 in Toys & Games) #1,631 in Science Toys & Kits | | Brand | CERROPI | | Colour | Silver | | Customer Reviews | 4.5 4.5 out of 5 stars (835) 4.5 out of 5 stars | | Educational Objective | Logical Thinking | | Global Trade Identification Number | 00715668926103 | | Included Components | 1PC Newtons Cradle | | Indoor Outdoor Usage | Indoor | | Is Assembly Required | No | | Item Dimensions | 23 x 17 x 17 Centimeters | | Item Type Name | science-kits | | Item Weight | 1200 Grams | | Manufacturer | CERROPI | | Manufacturer Part Number | 2057 | | Material | Wood Steel Nylon | | Maximum Recommended Age | 720.00 | | Minimum Recommended Age | 60.00 | | Model Number | 2057 | | Number Of Players | 1 | | Operation Mode | Manual | | Power Source | Manual | | Set Name | Newton's Cradle with 7 Balls | | Size | Large | | Theme | Christmas | | Unit Count | 1 Count | | Upc | 715668926103 | ## Images ![CERROPI Large Newtons Cradle Pendulum with 7 Balls, Physics Perpetual Motion Desk Toys for Office, Calm Down Fidgets, 50+ Sec Swingtime (Beech Base) - Image 1](https://m.media-amazon.com/images/I/519EtFoV5NL.jpg) ## Questions & Answers **Q: i thought the entire purpose was to stay in motion until stopped . do they stop on their own?** A: yes, they will do stop on their own after 50-60 seconds **Q: Does this thing get rusted?** A: No. We have had ours for a few years now and it is still in like new condition. No rust **Q: What is the length? The title states 11" while the product descriptions specifies 9".** A: The length of the marble base is 9.06 inches, the width is 6.69 inches, and the diagonal length of the marble base is about 11 inches. **Q: we had one before from a mall and the balls were tangled so we couldn't use it does this one have the balls where they don't tangle ?** A: The one I ordered through Amazon was packaged very carefully with each ball and string wrapped in plastic. The strings were not tangled. The unit has not tangled; the balls are heavy weight and seem to be good quality. I am sorry that you had that experience. I enjoy the cradle so much; it is intriguing. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Attractive, very well built. Great way to demonstrate kinetic energy *by J***Y on 7 April 2026* Excellent quality and packaging protected it. I bought this for the conceptual Physics class in our home school curriculum. The kids love it. Highly recommended. ### ⭐⭐⭐⭐⭐ Made with care. Packaged with care. Delivered with care. *by P***T on 4 July 2025* Made with care. Packaged with care. Delivered with care. This is solid quality. It’s heavy and feels durable. Shipping was fast and is worth every penny spent. It was very easy to take out even though it was packaged very carefully with each ball in its own compartment and wrapped. It even came with an extra ball and string. Although it came with instructions, I was too excited to read, its easy enough that you can get it out and going without needing the instructions. I took my time and was careful not to twist or tangle anything. I don’t see this as a toy or something for small kids to play with as the strings are delicate and can get tangled if not treated with care. It looks good on my desk at work and from time to time I get it moving. It doesn’t last very long, but the sound is soothing. Spend the money and get it! ### ⭐ ちゃんと作動しない *by A***ー on 29 December 2022* １つだけ持ち上げても、反対側て2つ跳ね返る ## Frequently Bought Together - CERROPI Large Newtons Cradle Pendulum with 7 Balls, Physics Perpetual Motion Desk Toys for Office, Calm Down Fidgets, 50+ Sec Swingtime (Beech Base) - Flagest Magnetic Levitation Floating Globe, Levitating C Shape Globe with LED Lights for Education Home Office Desk Bookshelf Decor, Holiday Anniversary Creative Item(3.3 Inches) --- ## 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.hk/products/633752367-cerropi-large-newtons-cradle-pendulum-with-7-balls-physics-perpetual](https://www.desertcart.hk/products/633752367-cerropi-large-newtons-cradle-pendulum-with-7-balls-physics-perpetual) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-09-26*