Rock Tumbler National Geographic elementary school The "rev up" mechanism inside

The "rev up" mechanism inside each of these four cars and trucks makes it easy for babies and toddlers to get big acceleration with just a little input: Pull back one of the soft vehicles--then release to see it zoom off across the floor

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TIME TO GET ARTISTIC: Create marvellous magic art using 25 magic pens with amazing powers

Iron Oxides

Rock Tumbler National Geographic elementary school The "rev up" mechanism insideIt's all about what's on the inside. Ordinary rocks turn into polished gemstones, showing kids that earth's treasures are all around us. High quality, leak proof tumbling machine, polishing grits, learning guide and more are included.