The Sand Clock Hourglass is a timepiece that is visually captivating and interesting to use. The hourglass is made of two glass cylinders that are attached at the bottom by a narrow neck. The narrow neck is sealed to prevent sand from spilling out. There is a circular hole in the top of the upper cylinder and the bottom of the lower cylinder. This hole is used to pour sand into the upper cylinder. When the sand reaches the top of the upper cylinder, it spills out through the hole in the top and falls through the narrow neck into the lower cylinder. This continues until all of the sand has fallen from the upper cylinder. Its interesting to watch and count time.
