WARMBUY Magnetic Hourglass Decorative Sand Timer with a Base, Black

Materials: glass, magnetic and iron filings, Dimensions (hourglass: 6" high x 2. 25" diameter; Dimensions (base: 3" x 3" x 0. 75", Timer is approximately 25 seconds long, The Magnetic Sand Hourglass is a fun desktop diversion. Flip it over and watch the grains of iron stack up in seemingly impossible formations thanks to a magnet embedded in the base. , Watching time fly has never been so interesting. The craggy configurations of the iron filings eventually build into an ordered hemisphere with a spiky surface. Like your favorite movie, you can enjoy watching the Magnetic Sand Hourglass over and over again.