--- product_id: 575279744 title: "C1 Pro Max Quiet Rock Tumbler Kit, 3LB, Brushless Motor, Noise Cover" brand: "koolstone" price: "€ 436.73" currency: EUR in_stock: true reviews_count: 13 url: https://lithuania.desertcart.com/products/575279744-c1-pro-max-quiet-rock-tumbler-kit-3lb-brushless-motor store_origin: LT region: Lithuania --- # 6X noise reduction 3LB large capacity Brushless motor tech C1 Pro Max Quiet Rock Tumbler Kit, 3LB, Brushless Motor, Noise Cover **Brand:** koolstone **Price:** € 436.73 **Availability:** ✅ In Stock ## Summary > 🪨 Elevate your gem game with the quietest, most powerful rock tumbler on the market! ## Quick Answers - **What is this?** C1 Pro Max Quiet Rock Tumbler Kit, 3LB, Brushless Motor, Noise Cover by koolstone - **How much does it cost?** € 436.73 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [lithuania.desertcart.com](https://lithuania.desertcart.com/products/575279744-c1-pro-max-quiet-rock-tumbler-kit-3lb-brushless-motor) ## Best For - koolstone enthusiasts ## Why This Product - Trusted koolstone brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **All-Inclusive Pro Kit:** Includes 1LB assorted rough stones, polishing grits, ceramic media, belts, jewelry fastenings, and a step-by-step guide—start creating immediately. - • **Whisper-Quiet Tumbling:** Experience up to 6X less noise with advanced soundproof cover and rubber barrel—perfect for indoor use without disruption. - • **Next-Gen Brushless Motor:** Unmatched power and durability deliver lightning-fast, ultra-smooth polishing for flawless gemstone finishes every time. - • **Confidence-Backed Warranty:** Enjoy peace of mind with a 1-year warranty, 24/7 support hotline, and hassle-free accessory replacements—your investment is protected. - • **Precision Control at Your Fingertips:** Customize your polish with 3-speed settings, a 9-day timer with memory, and an intuitive digital display for perfect results. ## Overview The KoolStone C1 Pro Max is a professional-grade rock tumbler featuring a pioneering brushless motor and a noise-reduction system that cuts sound by 6X. With a large 3LB rubber barrel, 3-speed controls, and a 9-day timer with memory, it delivers precise, ultra-quiet polishing ideal for indoor use. The kit comes fully loaded with rough stones, polishing grits, ceramic media, and accessories, backed by a 1-year warranty and 24/7 support—perfect for hobbyists and STEM learners aged 13+. ## Description This isn’t just a tumbler. It’s your polishing powerhouse. With the C1 Pro Max, you’re stepping into serious performance — built for bigger batches, stronger torque, and smoother long-term tumbling. We can’t wait to see the mirror finishes you create. Share your results with us and get featured on our desertcart page and social media — exceptional craftsmanship deserves recognition. Pro Tip: For that perfect shine, pair your tumbler with our high-quality polishing grits kit (don’t forget to add it to your cart!). Combined with soap water, mineral oil, and patience, they’ll transform rough rocks into dazzling jewels for jewelry, crafts, or your collection. Have concerns? We’re here to help—quickly and cheerfully. Just reach out, and our team will ensure a seamless experience. Your satisfaction is our priority! Keep creating, keep inspiring, and let’s bring your vision to life—together. KoolStone– Where Imagination Meets Craftsmanship. ↓Add KoolStone 4 LBS Polishing Grit Kit for long-term polishing needs—better value per use! ## Features - The FIRST and ONLY Noise-Reduction & Brushless Motor Rock Tumbler on the Market – Upgrade Your Rock Polishing Experience - CUTTING-EDGE BRUSHLESS MOTOR, UNMATCHED IN THE MARKET -- C1 Pro Max rock tumbler boasts an unbeatable brushless motor, providing lightning-fast and highly effective tumbling action that leaves your gems and rocks polished to perfection. We take pride in being the pioneers of the brushless motor rock tumbler, currently the first and only one available on the market. - 6X QUIETER WITH NOISE-REDUCTION COVER, PERFECT FOR INDOOR ROCK TUMBLING -- Experience the tranquility of tumbling with the noise-dampening cover that makes tumbling operations quieter than ever before. Ideal for enthusiasts who enjoy tumbling indoors or have limited space. Moreover, the rubber barrel reduces noise by 75% compared to other plastic barrels. - EXPEDITED POLISHING AND SUPERIOR RESULTS -- With 3-speed controls allowing for more precise tumbling, a 9-day timer featuring automatic shutoff and memory function, all conveniently displayed on a clear screen, you can effortlessly hone your settings for impeccable polishing results every time. - EVERYTHING YOU NEED FOR GEMSTONE POLISHING RIGHT AT YOUR FINGERTIPS -- The KoolStone Rock Tumbler includes a complete set of tools required for creating exquisite polished gemstones. Unbox and discover the rock tumbler itself, equipped with a 3LB capacity rubber barrel, 1LB of rough gemstones in 9 different varieties, 2 durable belts, 4 types of polishing grits, a sifter, mesh strainer and ceramic pellets,along with jewelry fastenings and an illustrated tutorial guide. Start tumbling right away! ## Technical Specifications | Specification | Value | |---------------|-------| | Age Range Description | Suitable for children aged 13 and above | | Asin | B0CG31MLN9 | | Best Sellers Rank | #62,870 in Toys & Games (See Top 100 in Toys & Games) #18 in Kids' Rock Tumblers | | Brand Name | KoolStone | | Color | Brushless Edition: C1 Pro Max | | Customer Reviews | 4.6 4.6 out of 5 stars (386) 4.6 out of 5 stars | | Educational Objective | STEM | | Included Components | 1-Year Warranty Card, Illustrated Learning Booklet, 1LB Assorted Rough Rocks, 2 Durable Belts, 3LB Capacity Rubber Barrel, Ceramic Tumbling Media, 4 Bags of Polishing Grits, Jewelry Fastenings, Soundproof Rock Tumbler Base with Brushless Motor | | Indoor Outdoor Usage | Indoor | | Item Weight | 3.88 kg | | Manufacturer | KoolStone | | Manufacturer Part Number | DC20220422 | | Manufacturer Recommended Age | 13 years and up | | Material Type | 1.） Tyre grade rubber barrel and top-quality stainless steel. 2.) If you received the package and missing parts or damaged, no worries, please feel free to reach out at: support@ikoolstone.com to take the replacement. 3.) Any problems before purchasing, please reach out at: support@ikoolstone.com to get the answer. | | Model Number | C1 Pro Max | | Number Of Packs | 1 | | Number Of Players | 1 | | Operation Mode | Manual | | Power Source | Corded Electric | | Set Name | C1 Pro Max | | Size | Large 3LB Rock Tumbler Kit | | Supported Battery Types | No batteries required | | Theme | Perfect gift for rock lovers, kids, and hobbyists to create stunning polished stones. | ## Images ![C1 Pro Max Quiet Rock Tumbler Kit, 3LB, Brushless Motor, Noise Cover - Image 1](https://m.media-amazon.com/images/I/71RsoTQ6-rL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ A joy to use! *by on Reviewed in the United States September 27, 2026* I love this rock tumbler and I'll probably buy another one when I can. You can control the speed and set the number of days you want it to run for. It shuts off automatically at the end of the run. I also thought it was a pretty good value. You also get some rocks! It's way less noisy than tumblers I've had in the past. I put a styrofoam cooler over the top of it to damped the sound even more. I keep it by my desk and the sound really doesn't bother me. I also think the barrel is high quality, it has a tight seal and the big screw nut is easy to tighten. It also looks really nice with a clean stylish design. I'm having a lot of fun with it. ### ⭐⭐⭐⭐⭐ The tumbler works as expected, but took longer to get going. *by on Reviewed in the United States August 17, 2026* The rock tumbler I ordered arrived and did not work. I messaged the company and they sent a new ac adapter. That took 4 days. Plugged it in, still did not work. Messaged back again, and they sent a new machine. Took 6 days to get it. Plugged it in and it works as expected. I think the product it self is great. The tumbler is quiet and works well. I think it was unfortunate we got a non working unit, and it stinks that it took a extra 2 weeks to get it going because I was waiting on shipping. They did make it right and got me a working unit, I just wish it all happened quicker as my son wanted to get his rocks going. ### ⭐⭐⭐⭐⭐ First Time Tumbler *by on Reviewed in the United States September 14, 2026* Very satisfied with the Tumbler. As a first time tumbler, I was very impressed with the performance of the Kookstone C1 Pro Max. Easy to use, simple settings - and looks great. I had one issue after a few weeks; Daisy was exceptionally helpful with resolving my issue. Top quality customer service. I can't want to use this Tumbler for a long time. ## Frequently Bought Together - KoolStone C1 Pro Max Brushless Rock Tumbler Kit - Extra Large 3LB Capacity, Up to 6X More Noise Cancelling, Ultra Quiet Rotary Polisher with Full Accessories, Ideal for Adults Kids - KoolStone Large Rock Tumbler Grit Kit [10 Pounds], Polish Up to [50 lbs.] of Rocks, 4 Steps Polish Refill Media Kit with [Ceramic and Plastic Pellet Tumbling Media], Compatible with Any Tumbler - 5 Packs of Rock Tumbler Replacement Belts, Only Compatible with KoolStone C1, C1 Pro & C3 Rock Tumbler, 78 * 4mm --- ## 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://lithuania.desertcart.com/products/575279744-c1-pro-max-quiet-rock-tumbler-kit-3lb-brushless-motor](https://lithuania.desertcart.com/products/575279744-c1-pro-max-quiet-rock-tumbler-kit-3lb-brushless-motor) --- *Product available on Desertcart Lithuania* *Store origin: LT* *Last updated: 2026-10-29*