Sand Timer Set 9 piece. 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.
 
Contains: 1 x 10 sec (30062), 1 x 30 sec (30063), 1 x 90 sec (30064) and 2 x 60 sec (30059), 2 x 120 sec (30065) and 2 x 180 sec (30060) sand timers.