Description: Material:Hourglass sand timer is made of thickened high borosilicate glass, which is clear and sturdy. TVisual Timekeeping: This hourglass provides a visual and tangible way to keep track of time, helping stay focused and improve efficiency.Home Decor: Sand timer providing ten minutes timers,can be used as a home decoration and is often used in the kitchen. ideal for home, office, school, restaurant, etc.Educational Tool: The hourglass can be used to teach children about time and measurement concepts, helping them understand the passage of time and the meaning of different periods.Keepsake or Collectible: Glass hourglass sand timer can serve as a memento for special moments or achievements. It's also a popular collectible item among collectors and hourglass enthusiasts. Specification: Material: Glass Size Chart: 16cmx6.5cm/6.30inchx2.56inch Package Includes: 1 Hourglass Note: Please allow slightly errors due to manual measurement and different monitors.