Like sands in an hourglass ...The Original Magnetic Sand Timer creates awesome sculptures as the magnetic black sand falls through the glass. Just flip the glass to make another magnetic sculpture on the opposite side of the hourglass. A different sculpture every time you turn over the glass! The timer contains enough magic magnet sand for about 30 seconds of amazing action. A neat Science Experiment and especially fun gift.Type: Science Toy - Closed Glass (in hourglass shape) with Black Magnet SandCategory: Science Toy - For Ages 8+ (Fun for all ages!)Size: 6" Tall (6 x 3.5 x 3.5 inches)Package: Retro Color Gift Box - "The Original Reversible Magnetic Sand Timer - Classic Scientific Wonder" Aaron's Giggle Meter: 10 of 10