HIGH-QUALITY MATERIALS AND DIMENSIONS: hand-made by sand timer, blown glass, sand foundry, complex craftsmanship, fine workmanship, strong and environmentally friendly materials that are not easy to break, durable and anti-vibration. Black wooden frame + blue sand size: 14.5x8x8 CM (20 MIN) WHY ME? (a) 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. (b) The shape is simple and the design is exquisite, suitable for different styles of decoration and decoration. (c) 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. WORRY-FREE PACKAGING AND TRANSPORTATATION: Our hourglass sand timer adopts environmentally-friendly, shock-resistant and drop-proof packaging, which guarantees the safety of transportation. 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"