An hourglass, also known as a sandglass, sand timer or sand clock, is a device for the measurement of time. The hourglass is named for the most frequently used sandglass, where the sands have a running time of 30 minutes or one hour. Once all the sand has run to the bottom bulb, the device can be inverted in order to measure time again.
#1 Sand Color…White
Glass…Clear
#2 Sand Color…White
Glass…1/2-Blue, 1/2-Clear
Size 5.5″ tall
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