We VENUS MART Presents Wooden and Brass Sand Timer Hour Glass Sandglass Clock Ideal for Exercise Tea Making Antique Nautical Decor Theme Height 6 Inches 5 Minutes Sand Clock is made from Premium brass, the glass is natural and realistic.The hourglass is also called the sand clock, which is a device for measuring time. The western hourglass consists of two glass balls and a narrow connecting pipe. Time is measured by the time it takes for a glass ball filled with sand to flow from above through a narrow pipe and into the bottom glass ball. Once all the sand has flowed to the bottom glass ball, the hourglass can be turned upside down to measure time.
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