{"product_id":"rock-tumbler-refill-pack","title":"Thames \u0026 Kosmos Rock Tumbler Refill Pack","description":"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+","brand":"Thames \u0026 Kosmos","offers":[{"title":"Default Title","offer_id":45159820624007,"sku":"TKM678008","price":14.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0667\/9317\/7223\/files\/thames-kosmos-rock-tumbler-refill-pack.jpg?v=1794425793","url":"https:\/\/sanramon.learningexpress.com\/products\/rock-tumbler-refill-pack","provider":"Learning Express Toys \u0026 Gifts - San Ramon CA","version":"1.0","type":"link"}