Rock Tumbler - Thames & Kosmos

Polish and shine stones into beautiful gems with this Thames & Kosmos Rock Tumbler. Ideal for curious young rockhounds, this educational kit transforms rough rocks into gleaming treasures over several weeks. Perfect for developing patience, scientific observation, and an appreciation for natural geology. A hands-on STEM experience that rewards persistence with stunning results.

The accompanying manual and poster inspire children to dive into their rock-polishing explorations, offering step-by-step instructions and fascinating scientific details about rock types, formation processes, and more.

• Innovative and high-quality design brings a fresh perspective to this timeless science tool at an affordable price.
• Adjustable built-in timer allows operation for up to seven days.
• Includes jewelry fasteners to transform polished specimens into accessories.
• Generous 450g (over 1 pound) capacity for tumbling experiments.
• Powered by USB-C for convenience.
• Recommended for ages 14+