--- product_id: 243434713 title: "National Geographic Professional Rock Tumbler Kit- Stone Polisher for Kids and Adults, Complete Kit with Durable Tumbler, Rocks, Grit, and GemFoam Polisher, A Great STEM Hobby" brand: "blue marble" price: "274541CFA" currency: XOF in_stock: true reviews_count: 13 category: "Blue Marble" url: https://www.desertcart.sn/products/243434713-national-geographic-professional-rock-tumbler-kit-stone-polisher-for-kids store_origin: SN region: Senegal --- # 453g rough rocks with 9 gemstone types 75% quieter leak-proof stainless steel barrel Durable motor with time & speed control National Geographic Professional Rock Tumbler Kit- Stone Polisher for Kids and Adults, Complete Kit with Durable Tumbler, Rocks, Grit, and GemFoam Polisher, A Great STEM Hobby **Brand:** blue marble **Price:** 274541CFA **Availability:** βœ… In Stock ## Summary > πŸ’Ž Transform Rough Rocks into Polished Perfection β€” Join the Gem-Making Elite! ## Quick Answers - **What is this?** National Geographic Professional Rock Tumbler Kit- Stone Polisher for Kids and Adults, Complete Kit with Durable Tumbler, Rocks, Grit, and GemFoam Polisher, A Great STEM Hobby by blue marble - **How much does it cost?** 274541CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/243434713-national-geographic-professional-rock-tumbler-kit-stone-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 - β€’ **GemFoam Magic:** Innovative reusable foam polisher delivers dazzling, museum-quality shine - β€’ **STEM Meets Style:** Turn your polished stones into unique jewelry pieces and impress your circle - β€’ **All-Inclusive Gem Lab:** Complete kit with rocks, grit, strainer, and jewelry fastenings - β€’ **Set & Forget Precision:** Customizable timer and speed for perfect polish every time - β€’ **Whisper-Quiet Operation:** Engineered barrel reduces noise by 75% for peaceful creativity ## Overview The National Geographic Professional Rock Tumbler Kit is a premium, all-in-one STEM hobby set designed for kids and adults to transform 453 grams of rough stones into brilliantly polished gemstones. Featuring a durable, quiet motor with adjustable time and speed controls, a leak-proof stainless steel barrel, and the exclusive reusable GemFoam polisher, this kit offers a seamless tumbling experience. Complete with grit, a strainer, and jewelry fastenings, it empowers users to create stunning gemstone jewelry while honing geological and observational skills. ## Description Product Description National Geographic Professional Rock Tumbler Kit This professional rock tumbler turns rough rocks into beautifully polished gemstones, thanks to its simple operation and durable design. Kit includes 453 grams of rough rocks with 9 different types of gemstones inside, 5 jewellery fastenings, grit, strainer & our innovative GemFoam polishing foam. Take your tumbling seriously with the National Geographic professional tumbler. This kit has all the features and accessories you’ll need to master rock tumbling, start an extraordinary rock collection, and create beautiful jewellery. This tumbler boasts professional features including a power-saving automatic shutoff timer; reliable, long-lasting motor; leak-proof tumbler barrel; and noise-reduced operation (75% quieter than plastic barrels). The kit also includes: plenty of rough stones (453 g), four levels of grit, jewellery fastenings so you can create your own unique jewellery, and our innovative GemFoam to add dazzling shine to your polished stones! This high-quality tumbler allows you to set your speed and tumbling time. When the time expires, your tumbler will automatically shut-off, allowing you to choose the perfect amount of tumble time for each grit stage. Plus, our redesigned tumbling barrel dampens sound better than most tumblers out there. The rough rocks provided (453 g) contain nine different gemstones from around the world, and our tumbling grit is labeled by tumbling stage to make the process even easier! Choose your favourite gems and turn them into jewellery with the included necklace, key chain, ring, and two clip-on earring fastenings inside. And don't forget about GemFoam, our exclusive new way to add dazzling shine to your polished rocks! Use GemFoam just like tumbling grit, simply add it to the barrel with your stones and water, then three days later marvel at the shine! GemFoam is reusable too, allowing you to create a truly impressive gemstone collection! Order the Professional Rock Tumbler Kit from National Geographic today and take your tumbling hobby to the next level! We make the highest quality hands-on science toys, and all products are backed by exceptional service. With a mission to inspire people to care about the planet, the National Geographic Society is one of the world’s largest nonprofit scientific and educational organizations. Review: Great barrel tumbler, sturdy. - Sturdy rock tumbler, comes with everything you need to get started. Only as far as stage 2 and I'm loving it. Can't wait to see the finished stones. Nice size barrel, holds a good amount. Thoroughly recommend. Review: Quiet and easy to use - Bought a cheaper version of this, and it broke a drive belt almost daily. Sent it back for a refund and bought this one. This is much better, and has been running for a couple of weeks now with no issues. It is also considerably quieter than the other one (although I still wouldn't want it in a room I spend a lot of time in). Feels good quality, it's been running well and it is really simple and easy to use. Very impressed. ## Features - Warning:Not suitable for children under 8 years. For use under adult supervision - Warning:Toy inside. Adult supervision recommended - CREATE YOUR OWN GEMSTONES - Rock tumbling is a hugely popular hobby for kids and adults! This professional rock tumbler makes it fun and easy to turn rough rocks into beautifully polished gemstones, thanks to its simple operation and durable design. - A TUMBLER THAT'S MADE TO LAST - The durable motor has time and speed control settings so you can set it, and forget it. An improved, leak-proof barrel features a stainless-steel lid is 75% quieter overall than plastic tumbler barrels. - ALL-IN-ONE TUMBLING KIT - This kit has everything you need and then some! You get 453 grams of rough rocks with nine different types of gemstones inside, five jewellery fastenings, tumbler grit, a strainer, and our innovative new GemFoam rock polisher. - USE GEMFOAM FOR DAZZLING RESULTS - This rock tumbler kit stands apart from others thanks to our new, reusable GemFoam rock polisher! Add GemFoam and water to the barrel after your final tumbling stage and your gems will have incredible shine! - SATISFACTION GUARANTEED – The National Geographic STEM series provides kids high-quality educational toys that are a whole lot of fun! If your experience is anything less than extraordinary, let us know so we can make it right for you. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B086Z83SV5 | | Age Range Description | Kid, Adult | | Age range (description) | Kid, Adult | | Battery Description | No battery required | | Best Sellers Rank | 31,161 in Toys & Games ( See Top 100 in Toys & Games ) 334 in Educational Science Kits | | Brand | Blue Marble | | Brand Name | Blue Marble | | Country Of Origin | China | | Customer Reviews | 4.2 out of 5 stars 4,268 Reviews | | Educational Objective | Geological exploration, observation skills, logical thinking | | Educational objective | Geological exploration, observation skills, logical thinking | | Is Assembly Required | No | | Item Dimensions | 32 x 17 x 26 centimetres | | Item dimensions L x W x H | 32 x 17 x 26 centimetres | | Language | English | | Manufacturer | JMW Sales, Inc. | | Manufacturer Part Number | NGPROTUMBLER3 | | Manufacturer Warranty Description | No Warranty | | Material Type | Multiple | | Maximum Age Recommendation | 120 | | Minimum Age Recommendation | 96.00 | | Model Number | NGPROTUMBLER3 | | Number of Packs | 1 | | Set Name | National Geographic Professional Rock Tumbler Kit | | Size | 12.6 x 6.7 x 10.25 inches | | Sub Brand | national | | Theme | Earth Science | | UPC | 816448029288 | | Unit Count | 1.0 count | ## Product Details - **Age range (description):** Kid, Adult - **Brand:** Blue Marble - **Item dimensions L x W x H:** 32 x 17 x 26 centimetres - **Size:** 12.6 x 6.7 x 10.25 inches - **Theme:** Earth Science ## Images ![National Geographic Professional Rock Tumbler Kit- Stone Polisher for Kids and Adults, Complete Kit with Durable Tumbler, Rocks, Grit, and GemFoam Polisher, A Great STEM Hobby - Image 1](https://m.media-amazon.com/images/I/813f+VXqndL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great barrel tumbler, sturdy. *by C***N on 19 July 2026* Sturdy rock tumbler, comes with everything you need to get started. Only as far as stage 2 and I'm loving it. Can't wait to see the finished stones. Nice size barrel, holds a good amount. Thoroughly recommend. ### ⭐⭐⭐⭐⭐ Quiet and easy to use *by R***R on 6 June 2025* Bought a cheaper version of this, and it broke a drive belt almost daily. Sent it back for a refund and bought this one. This is much better, and has been running for a couple of weeks now with no issues. It is also considerably quieter than the other one (although I still wouldn't want it in a room I spend a lot of time in). Feels good quality, it's been running well and it is really simple and easy to use. Very impressed. ### ⭐⭐⭐⭐ Tumbling ready to go *by J***E on 9 March 2022* Bought as a present the National Geographic Proffesional rock tumbler appeared to be the ideal gift and the rubber barrel appeared good value for money when compared with others. On opening the box it contains everything you would need to tumble, polish and shine the rocks, semi precious stones and crystals into beautiful objects. The process is made by NG's very easy to follow as 123 process and offers good results. Of the four tumbling processes we got to number 3 before we noted the rubber drive belt started to continually come off. On further investigation I could see a fine black dust where the tumbler was standing and identified the issue as poor quality large wheel that was very sharp and as such with every turn cut away at the drive belt until the side was flattened and would no longer stay in place and come off following a single turn. Not sure if this was the πŸ‹ in the basket but I could only see the spare replacement drive belt supplied may follow the same pattern of excelerated ware and decided to return the tumbler. As this product has increased in price since purchased I am now looking for a better quality replacement without all the extras. The NG Pro was a good all-rounder let down by some poor finish plastic component. ## Frequently Bought Together - NATIONAL GEOGRAPHIC Professional Rock Tumbler Kit - Complete Rock Tumbler for Adults & Kids with Durable 2 Lb. Barrel, Rocks, Grit, and Patented GemFoam Finishing Foam Polish, Rock Polisher - 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 – 1Lb. Gemstones and Rocks for Tumbling including Unpolished Amethyst and Quartz – Rock Tumbler Supplies include Rock Tumbler Grit and Jewelry Accessories --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sn/products/243434713-national-geographic-professional-rock-tumbler-kit-stone-polisher-for-kids](https://www.desertcart.sn/products/243434713-national-geographic-professional-rock-tumbler-kit-stone-polisher-for-kids) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-09-14*