This Ooze Timer is in the shape of a star. Turn over the Star Ooze Timer and watch as the liquid oozes down into the lower portion. It takes approximately 6 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. Star Ooze Timers can also be used for teacher or child stress release/relaxation, quiet time toy, refocusing prop, anxiety prop or a timer. The Star Ooze Timer is 5 3/4" tall.