Thames & Kosmos Rock Tumbler Refill Pack

Extend the Rock-Tumbling Fun: Replenishes supplies for additional polishing projects. Hands-On Science Activity: Makes geology engaging through an interactive experiment. Explore Natural Rocks: Discover the colors, textures, and patterns hidden inside rough stones. Great for Young Scientists: Encourages curiosity, observation, and hands-on learning. Perfect for Rock Collectors: A useful refill for continuing a rock-tumbling hobby. Suitable for ages 8+