Hourglass symbol of love, friendship and happiness, in the passage of time, things in the change. A creative Home Decoration, office Decoration Both modern and practical, each hourglass filled with colored sand Hourglass, also known as an sand clock, a means for measuring time. Hourglass with the sand in a run time. Once all the sand has been run in the end portion, the device can be inverted in order to measure the time again. It can be used as a study, living room furnishings, home furnishing, birthday gifts, etc. Notice If the hourglass does not work well or does not flow, you can slightly shake it a few times! After the shaking, it will work better!