Turn over the Ice Cube Ooze Timer and watch the liquids oozes down into the lower portion. It takes approximately four to five minutes (depending on room temperature) to completely empty into the lower portion. Great prop to keep on a science table. The Ice Cube Ooze Timer can also be used for teacher or child stress, quiet time toy, refocusing prop, anxiety prop, or a timer. The Ice Cube Ooze Timer is 5" tall.