Start your own rock collection and grow beautiful crystals! Learn and experiment with 8 different types of rock. Learn how to smash the toughest rock in the world! Comes with an instruction booklet to guide you through your experiments.
Find a wide range of Poof-Slinky toys at Toys'R'Us.com! Poof-Slinky manufactures the POOF foam ball line and Slinky spring toys in the United States. Other products of POOF include the Classic Ideal construction toys and tabletop games, no-bake cooking kits, and science and activity kits. In the Spring of 2010 Poof-Slinky acquired Cadaco, a 75-year old manufacturer of a popular line of board games, including the famous Tripoley, the Ryan Oakes magic line, and the green activity/construction line EnviroBLOX; now called Stikits.
9.1 x 7.2 x 2.5
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