The duration of each timer is clearly marked on the top of each timer. Can use sand timers for time related activities and experiments, and are also a perfect resource for time management. It also offers children an excellent opportunity to observe and compare the passage of time. The timers are designed with a square base and top to prevent them from rolling. Ages 3+.
The sand falls through a strong glass timer and has an acrylic outer tube for extra protection.
Includes: 1 x 30 sec, 1 x 1 min,  1 x 2 min, 1 x 3 min, 1 x 5 min, 1 x 10 min,  1 x 15 min and 1 x 30 min