Turn over the Triple Ooze Timer and watch the liquids ooze to the lower portion. It takes approximately 4-5 minutes (depending on room temperature) to completely empty into the lower portion. Great prop to keep on the science table for children to tip, turn and watch as the liquid drops down. Triple Ooze Timer can also be used for teacher or child stress release/relaxation, quiet time toy, refocusing prop, anxiety prop or a timer. Triple Ooze Timer is 5 1/2" tall.