--- product_id: 646717446 title: "NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit - Rock Polisher for Kids & Adults, Noise-Reduced Barrel, Grit, 2.5 Pounds Raw Gemstone & Jasper Mix, Great STEM Hobby Kit" brand: "blue marble" price: "VT113371" currency: VUV in_stock: true reviews_count: 5 category: "Blue Marble" url: https://www.desertcart.vu/products/646717446-national-geographic-hobby-rock-tumbler-kit-rock-polisher-for-kids store_origin: VU region: Vanuatu --- # One-touch timer with automatic shutoff 75% quieter leakproof rubber barrel Durable motor with years of lifespan NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit - Rock Polisher for Kids & Adults, Noise-Reduced Barrel, Grit, 2.5 Pounds Raw Gemstone & Jasper Mix, Great STEM Hobby Kit **Brand:** blue marble **Price:** VT113371 **Availability:** ✅ In Stock ## Summary > 💎 Polish your passion, rock your STEM game! ## Quick Answers - **What is this?** NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit - Rock Polisher for Kids & Adults, Noise-Reduced Barrel, Grit, 2.5 Pounds Raw Gemstone & Jasper Mix, Great STEM Hobby Kit by blue marble - **How much does it cost?** VT113371 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/646717446-national-geographic-hobby-rock-tumbler-kit-rock-polisher-for-kids) ## Best For - blue marble enthusiasts ## Why This Product - Trusted blue marble brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Award-Winning Educational Fun:** From the Toy Association’s Toy of the Year winner, designed to inspire creativity and STEM learning for all ages. - • **Set It and Forget It Convenience:** One-touch timer and automatic shutoff let you control tumbling cycles without constant supervision. - • **Complete STEM Kit with Bonus Gems:** Includes 2.5 lbs of raw gemstones, 4 polishing grits, sifter, and a learning guide for hands-on science fun. - • **Whisper-Quiet Tumbling Experience:** Enjoy a 75% noise reduction thanks to the innovative leakproof rubber barrel—perfect for home or classroom. - • **Transform Rough Rocks into Dazzling Gems:** Effortlessly polish stones into museum-quality gemstones with simple, kid-friendly operation. ## Overview The Blue Marble National Geographic Hobby Rock Tumbler Kit is a durable, noise-reduced rock polisher designed for kids and adults aged 8 and up. Featuring a powerful motor, leakproof rubber barrel that cuts noise by 75%, and a one-touch timer with automatic shutoff, this all-inclusive STEM kit comes with 2.5 pounds of raw gemstones, multiple polishing grits, and educational materials. Winner of the Toy Association’s Toy of the Year Award, it offers a fun, hands-on way to learn geology and create stunning polished stones. ## Description Great way to start a rock collection!learn about the exciting hobby of rock tumbling with National Geographic. This set includes everything you need including two bonus rough gemstone refill packs (jasper mix and variety). rock tumbling is tons of fun and a great way to start an extraordinary rock collection. Kids can use the included jewelry fastenings to create beautiful homemade jewelry!contents and features:national Geographic toys is proud to provide a 100% satisfaction guarantee with all our products so that you can buy with confidence.about the National Geographic society:With a mission to inspire people to care about the Planet, the 126-year-old National Geographic society is one of the world's largest nonprofit scientific and educational organizations. National Geographic NET proceeds support vital exploration, conservation, research, and education programs. Review: Love it Review: Buen producto - Muy bien producto hasta ahora me a encantado ## Features - CREATE YOUR OWN GEMSTONES - Make any stone sparkle and polish everyday rocks into dazzling gemstones! This rock tumbler kit makes it fun and easy to turn rough rocks into beautifully polished gemstones, thanks to its simple operation and durable design. - BUILT TO LAST - Our high-quality tumblers are made with a durable motor that’s designed to last for years. The leakproof rubber barrel reduces sound, making it 75% quieter than other plastic models. Makes an excellent STEM gift or activity for girls and boys! - EVERYTHING INCLUDED - Tumbler, 4 polishing grits, sifter, Learning Guide, rough gemstones, PLUS 2 one-pound refill packs of rough gems and jasper stones. - EASY TO USE - Simple instructions and one-touch settings make rock tumbling fun and easy. Control the number of days for each tumbling cycle with the one-touch timer and automatic shutoff feature, so you can set it and forget it. This is a great gift for kids! - AWARD-WINNING PRODUCTS - Blue Marble, winner of the Toy Association's prestigious Toy of the Year Award, proudly develops products that foster education, imagination, and creativity, with a U.S. support team to ensure a stellar experience! ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07G9MWHGJ | | Age Range (Description) | 8 years and up | | Age Range Description | 8 years and up | | Battery Description | alkaline or rechargeable batteries | | Best Sellers Rank | #125,220 in Toys & Games ( See Top 100 in Toys & Games ) #3,264 in Science Toys & Kits | | Brand | Blue Marble | | Country of Origin | USA | | Customer Reviews | 4.5 out of 5 stars 2,157 Reviews | | Educational Objective | STEM | | Global Trade Identification Number | 00816448025891 | | Included Components | Rock Tumbler, 2 Packs Gemstones | | Is Assembly Required | No | | Item Dimensions | 44.5 x 16.5 x 22 Centimeters | | Item Type Name | Hobby Rock Tumbling Kit - Rock Polisher for Kids & Adults, | | Item Weight | 3.62 kg | | Item dimensions L x W x H | 44.5 x 16.5 x 22 Centimeters | | Manufacturer | JMW Sales, Inc. | | Manufacturer Part Number | NGHOBBYBUN | | Material | Plastic,Rubber | | Maximum Recommended age | 1188 | | Minimum Recommended age | 96.0 | | Model Number | NGHOBBYBUN | | Size | Medium | | Sub Brand | National Geographic | | Theme | Rock Tumbling | | UPC | 816448025891 | | Unit Count | 1.0 Count | ## Product Details - **Size:** Medium - **Brand:** Blue Marble - **Theme:** Rock Tumbling - **Age Range (Description):** 8 years and up - **Item dimensions L x W x H:** 44.5 x 16.5 x 22 Centimeters ## Images ![NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit - Rock Polisher for Kids & Adults, Noise-Reduced Barrel, Grit, 2.5 Pounds Raw Gemstone & Jasper Mix, Great STEM Hobby Kit - Image 1](https://m.media-amazon.com/images/I/81eRSHVQ+aL.jpg) ![NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit - Rock Polisher for Kids & Adults, Noise-Reduced Barrel, Grit, 2.5 Pounds Raw Gemstone & Jasper Mix, Great STEM Hobby Kit - Image 2](https://m.media-amazon.com/images/I/91qK0OauOLL.jpg) ![NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit - Rock Polisher for Kids & Adults, Noise-Reduced Barrel, Grit, 2.5 Pounds Raw Gemstone & Jasper Mix, Great STEM Hobby Kit - Image 3](https://m.media-amazon.com/images/I/814adNql2bL.jpg) ![NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit - Rock Polisher for Kids & Adults, Noise-Reduced Barrel, Grit, 2.5 Pounds Raw Gemstone & Jasper Mix, Great STEM Hobby Kit - Image 4](https://m.media-amazon.com/images/I/81nhNgCmiEL.jpg) ![NATIONAL GEOGRAPHIC Hobby Rock Tumbler Kit - Rock Polisher for Kids & Adults, Noise-Reduced Barrel, Grit, 2.5 Pounds Raw Gemstone & Jasper Mix, Great STEM Hobby Kit - Image 5](https://m.media-amazon.com/images/I/81HJ3NUwCpL.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Love it *by D***E on 8 February 2024* ### ⭐⭐⭐⭐ Buen producto *by J***A on 10 January 2026* Muy bien producto hasta ahora me a encantado ### ⭐⭐⭐⭐⭐ Great for beginners *by H***H on 15 June 2021* ## Frequently Bought Together - National Geographic Hobby Rock Tumbler Kit - Rock Polisher for Kids & Adults, Noise-Reduced Barrel, Grit, 2.5 Pounds Raw Gemstone & Jasper Mix, Great STEM Hobby Kit - NATIONAL GEOGRAPHIC Break Open 10 Premium Geodes – Includes Goggles and 2 Display Stands - Great STEM Science Kit, Geology Gift for Kids, Break Your Own Geodes with Crystals, Toys for Boys and Girls - My Book of Rocks and Minerals: Things to Find, Collect, and Treasure --- ## 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.vu/products/646717446-national-geographic-hobby-rock-tumbler-kit-rock-polisher-for-kids](https://www.desertcart.vu/products/646717446-national-geographic-hobby-rock-tumbler-kit-rock-polisher-for-kids) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-09*