Item Type: Hourglasses Material: Glass Size: Approx. 15.6 x 6 x 6cm / 6.14 x 2.36 x 2.36in Package List 1 x Hourglasses 1TEACHING HOURGLASS: Hourglass timer helps young or special needs students understand time more visually and is perfect for special education classrooms. 2HOME DECORATION: Space man appearance and exquisite craftsmanship constitute the perfect home decoration, also suitable for the office. 3WIDELY USED: Improve life efficiency, can be used to set the time for children to play games, yoga practice time, kitchen countdown, etc. 4WARM NOTE: Please allow 10% time deviation for the sand timer. small children under 3 years old should be supervised by an adult when using the timer. 5RELIABLE MATERIAL: Made of excellent glass, not easy to damage, High transparency, and with smooth surface, which is easy to clean and can be used for a long time.