C5 Starter Rock Tumbler Kit - Durable Leak-Proof Rock Polisher - Complete Rock Tumbling Kit with 4-Stage Silicon Carbide Grit - Adjustable Timer & Speed with Memory Function

★★★★★ 4.5 51 reviews

$37.97
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$37.97
Price when purchased online
Free shipping Free 30-day returns

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Management number 216407491 Release Date 2026/04/19 List Price $15.19 Model Number 216407491
Category
  • KoolStone C5 Series – Perfect for Beginners. Designed for first-time users, the C5 combines a beginner-friendly exterior with smart controls and a colorful, intuitive interface. Step-by-step guidance ensures a smooth, successful start. Includes a full-color polishing guide with tips, stage recommendations, and fun rock facts—making rock polishing easy, educational, and enjoyable from day one.
  • Dual Noise-Reduction – Up to 85% Quieter Tumbling. The C5’s dual noise-reduction design—premium rubber barrel plus noise-reduction lid—cutting noise by up to 85% compared with standard plastic barrels. Smooth, soft, and quiet, perfect for shared spaces or nighttime use.
  • The 1st Smart Tumbler for Beginners – True smart control in a simple, one-touch design. The 3-speed, 9-day polishing program removes guesswork, guiding beginners from start to finish. Pause/Resume feature lets you stop and continue anytime—smart, simple, and stress-free.
  • Everything You Need to Create Polished Gemstones – Rock tumbler, rubber barrel, 0.5LB of 8 types of rough gemstones, 2 belts, 4 polishing grits, sifter, jewelry fastenings, and illustrated tutorial guide. For even longer use and better results, pair with KoolStone’s 4LB Professional Polishing Grit (sold separately).
  • Fun, Educational & Kid-Friendly STEM Gift – Designed with a truly kid-friendly setup, the C5 makes it easy and exciting for young explorers to turn ordinary stones into shiny treasures. A perfect birthday/Children's Day/christmas gift for kids, beginners, and young rock collectors—engaging, educational, and full of festive holiday fun for the whole family.
  • Official KoolStone Warranty – 𝟏 𝐘𝐞𝐚𝐫 𝐂𝐨𝐯𝐞𝐫𝐚𝐠𝐞 & 𝟗𝟎-𝐃𝐚𝐲 𝐑𝐢𝐬𝐤-𝐅𝐫𝐞𝐞 𝐓𝐫𝐢𝐚𝐥. Your purchase is protected by KoolStone’s official 𝟏-𝐲𝐞𝐚𝐫 𝐰𝐚𝐫𝐫𝐚𝐧𝐭𝐲 and a 𝟗𝟎-𝐝𝐚𝐲 𝐦𝐨𝐧𝐞𝐲-𝐛𝐚𝐜𝐤 𝐠𝐮𝐚𝐫𝐚𝐧𝐭𝐞𝐞. Shop with confidence — we’re here to support your tumbling journey.

Color Orange
Theme 1.) It fosters a love for science, geology and mineralogy in a fun and exciting way with your child. 2.) For best experience, we are offering 5 belts for spare use. Please feel free to reach out at: support@ikoolstone.com to get it. 3.) 2-Year replacement, please feel free to contact us for any issue.
Set Name C5 Series
Brand Name KoolStone
Unit Count 1.0 Count
Item Weight 2.22 Kilograms
Manufacturer KoolStone
Model Number C5
Power Source AC Adapter
Material Type Brushless Motor
Operation Mode Manual
Included Components 1-Year Warranty Card & Illustrated Learning Booklet, 2 Belts, Jewelry Fastenings, Mesh Strainer, Screwdriver, Power Adapter, 8 Types Assorted Rough Rocks, 4 Bags of Polishing Grits, Rock Tumbler Base with Rubber Barrel & Noise-reducation Cover, Support Email: support@ikoolstone.com
Indoor Outdoor Usage Indoor
Is Assembly Required Yes
Age Range Description So simple, even a 4-year-old can master it.
Educational Objective STEM
Supported Battery Types No batteries required
Manufacturer Part Number DCC520250821
Manufacturer Maximum Age MONTHS 1188
Manufacturer Minimum Age MONTHS 96.0
Manufacturer Warranty Description 1 Year Warranty Against Manufacturer Defects

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51 ratings | 21 reviews
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