--- product_id: 526415630 title: "National Geographic Ultra Quiet Rock Tumbler Kit for Kids and Adults | Ultra-Quiet Design, 2 Lb. Barrel, Rough Gemstones, 4-Stage Grit, GemFoam Polish, Rock Polisher, Geology Hobby" brand: "blue marble" price: "$394.14" currency: USD in_stock: true category: "Blue Marble" url: https://www.desertcart.us/products/526415630-national-geographic-ultra-quiet-rock-tumbler-kit-for-kids-adults store_origin: US region: United States of America --- # Sound-dampening ultra-quiet design 3-speed timer with day/hour settings 2 lb. barrel capacity National Geographic Ultra Quiet Rock Tumbler Kit for Kids and Adults | Ultra-Quiet Design, 2 Lb. Barrel, Rough Gemstones, 4-Stage Grit, GemFoam Polish, Rock Polisher, Geology Hobby **Brand:** blue marble **Price:** $394.14 **Availability:** ✅ In Stock ## Summary > 💎 Polish your passion, rock your world! ## Quick Answers - **What is this?** National Geographic Ultra Quiet Rock Tumbler Kit for Kids and Adults | Ultra-Quiet Design, 2 Lb. Barrel, Rough Gemstones, 4-Stage Grit, GemFoam Polish, Rock Polisher, Geology Hobby by blue marble - **How much does it cost?** $394.14 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/526415630-national-geographic-ultra-quiet-rock-tumbler-kit-for-kids-adults) ## 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 - • **GemFoam Brilliance:** Reusable GemFoam rock polisher ensures your stones dazzle with a museum-quality finish every time. - • **Award-Winning STEM Fun:** From the Toy Association’s Toy of the Year winner, this kit sparks creativity and learning for ages 8+ with expert U.S.-based support. - • **Whisper-Quiet Operation:** Innovative sound-dampening cover lets you enjoy tumbling indoors without disturbing your workspace or home. - • **All-Inclusive Starter Kit:** Comes complete with rough rocks, 4 grit bags, jewelry fastenings, strainer, and exclusive GemFoam polisher—everything you need to shine. - • **Professional Tumbling Power:** Large 2-pound barrel and 3-speed timer deliver flawless, customizable polishing for serious hobbyists. ## Overview The National Geographic Platinum Series Ultra Quiet Rock Polisher Kit features a spacious 2-pound barrel, a versatile 3-speed timer with day and hour settings, and a patented sound-dampening cover for quiet indoor use. This all-in-one STEM-focused kit includes rough rocks, multiple grit bags, jewelry fastenings, a strainer, and the exclusive GemFoam polisher for a brilliant finish. Designed for ages 8 and up, it combines award-winning educational value with professional-grade tumbling performance. ## Description desertcart.com: National Geographic Platinum Series Ultra Quiet Rock Polisher Kit - Patent-Pending for Kids & Adults, 2 lb. Barrel, Rocks, Grit, GemFoam, Rock Tumblers : Toys & Games ## Features - PROFESSIONAL TUMBLING - The Ultimate Tumbler delivers spectacular results with unparalleled ease of use! With its large 2-pound barrel, 3 selectable speeds; and timer with settings for days and hours. - QUIETEST TUMBLER - The Ultimate Rock Tumbler's all-new design includes a sound-dampening cover that makes tumbling quieter than ever, perfect for enthusiasts who tumble indoors, or in smaller or shared spaces. - ALL-IN-ONE TUMBLING KIT - This kit has everything you need to get started, including 1 pound of rough rocks, 4 bags of grit, 5 jewelry fastenings, a newly designed strainer, and our exclusive GemFoam rock polisher for a brilliant finish! - USE GEMFOAM FOR DAZZLING RESULTS - Your tumbled rocks will have an incredible shine thanks to our reusable GemFoam rock polisher. Just add GemFoam and water to the barrel after your final tumbling stage for a brilliant finish! - 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 | B0C2JN3S9M | | Age Range Description | 8 years and up | | Best Sellers Rank | #62,955 in Toys & Games ( See Top 100 in Toys & Games ) #19 in Kids' Rock Tumblers | | Brand Name | Blue Marble | | Customer Reviews | 4.4 4.4 out of 5 stars (594) | | Educational Objective | STEM | | Included Components | Platinum Series Ultra Quiet Gem Polisher Kit | | Is Assembly Required | No | | Item Dimensions | 16.1 x 7.64 x 13.66 inches | | Item Type Name | Ultra Quiet Rock Tumbler Kit | | Item Weight | 2 Pounds | | Manufacturer | JMW Sales, Inc. | | Manufacturer Maximum Age (MONTHS) | 1188.0 | | Manufacturer Minimum Age (MONTHS) | 96 | | Manufacturer Part Number | NGULTTUMBLER2 | | Model Number | NGULTTUMBLER2 | | Set Name | Rock Tumbler Kit with Polisher, Rocks, Grit, and Accessories | | Size | One Size | | Sub Brand | National Geographic | | Theme | Geology | | UPC | 810070622329 | | Unit Count | 1.0 Count | ## Images ![National Geographic Ultra Quiet Rock Tumbler Kit for Kids and Adults | Ultra-Quiet Design, 2 Lb. Barrel, Rough Gemstones, 4-Stage Grit, GemFoam Polish, Rock Polisher, Geology Hobby - Image 1](https://m.media-amazon.com/images/I/81EF9KBITbL.jpg) ## Questions & Answers **Q: I need a replacement barrel, i have searched without finding one. where do get one?** A: For parts under warranty, please contact us directly using the customer service contact information locate on the box and/or the instruction manual. **Q: Is this dual voltage?** A: The unit has a solar panel plus batteries Just started to use the device about a month ago **Q: Can you make Seaglass in this Tumblr?** A: I put thicker glass pieces in the tumbler The glass came out with rounded corners Very happy with it **Q: The tumbler was so quiet for the first 5 days, then the knocking sound began. I’ve double checked the lid, etc. and it’s still happening. Why?** A: I’m guessing that it’s either the rocks or stones inside the tumbler, could be there is a small leak and there isn’t as much water inside. That was what happened to me. It could be the rollers need oiling also. The whole process is pretty simple, there aren’t a lot of things to check. Good luck! It’s a great hobby ## Frequently Bought Together - NATIONAL GEOGRAPHIC Platinum Series Ultra Quiet Gem Polisher Kit - Patent-Pending for Kids & Adults, 2 lb. Barrel, Grit, GemFoam, Rock Tumblers - Blue Marble National Geographic Rock Tumbler Grit and Polish Refill Kit - Tumbling Grit Media, Polish Up to 20 lbs. of Rocks, Works with Any Rock Polisher, Rock Tumbler Supplies - National Geographic Rock Tumbler Refill Kit - 5 lb. Mix of Rocks for Tumbling and Rough Gemstones - Rock Tumbler Supplies Include Rock Tumbler Grit and Polish Refill, and Unpolished Rocks --- ## 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.us/products/526415630-national-geographic-ultra-quiet-rock-tumbler-kit-for-kids-adults](https://www.desertcart.us/products/526415630-national-geographic-ultra-quiet-rock-tumbler-kit-for-kids-adults) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-28*