Magnetic HourglassThe Magnetic Hourglass transforms the simple passage of time into a hands on science experience. As the sand flows, iron filings interact with a hidden magnet to create striking stalagmite like formations, demonstrating the principles of magnetism and material behavior. Crafted from smooth beechwood and durable borosilicate glass, this elegant timer is perfect for your desk, study, or living space, combining functionality with a touch of scientific