National Geographic Rock Tumbler Refill Kit - 2.26 kg Mix of Rocks & Rough Ge...

Blue Marble

ENORMOUS VARIETY - This rock tumbler refill kit has 2.27 kilograms of unpolished rocks and gemstones consisting of 906 g gemstone mix, 453 g agate mix, 453 g Madagascar mix, and 453 g jasper mix\nROCK POLISHING GRIT \u2013 There are 20 total rock tumbler grit packets in the kit, enough for five complete tumbling cycles with any rock tumbler\nJEWELLERY SETTINGS \u2013 Once your rocks are polished, use the 5 included jewellery settings to create beautiful keepsakes or use the included storage pouch to keep your favorite specimens all in one place\nDETAILED LEARNING GUIDE \u2013 The learning guide includes polishing instructions along with fascinating information about the stones in the kit\nRESPECTED QUALITY - National Geographic is proud to provide only the highest quality STEM toys and all our kits are backed by our 100% satisfaction guarantee