An hourglass or sandglass, sand timer, sand clock or egg timer is a device used to measure the passage of time.
It comprises two glass bulbs connected vertically by a narrow neck that allows a regulated flow of Sand from the upper bulb to the lower one.
Typically the upper and lower bulbs are symmetric so that the hourglass will measure the same duration regardless of orientation.
The specific duration of time a given hourglass measure is determined by factors including the quantity and coarseness of the particulate matter, the bulb size, and the neck width.
We make many kinds of sand timer with variations like
different Sand color like natural white , Natural Brown, Pink, Red, Blue, Greem
Time difference- 30 sec, 1min, 3min, 5min, 7min, 10min, 30 min and even Hour
material like aluminum, brass, Wood( mango, Indian Rose Wood and Steam beach), Cast Iron, Steel and Some time MDF
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