Hourglass sand timer You are a useful time tool in different occasions such as study, work, life, rest, etc. It has a wide range of applications and enhances time efficiency. The shape is simple and the design is exquisite, suitable for different styles of decoration and decoration. As the best choice for gifts, various great and memorable festivals, the best choice for family and friends. Hourglass sand timer helps you keep good time.SUCCESSFUL TIME FRIENDS: hourglass sand timer can effectively help you, your children and your family and friends to cultivate the concept of time, focus on, and cherish time.RUN TIME 20-minute hourglass. The sand timer rotates 700,000 times, which means a persons lifetime. The treasure of time the most precious thing in the world is "today"; the most easily lost thing is "today"