Turn over the Raindrop Timer and watch the liquid drop down the ramps. It takes two to three minutes (depending on room temperature) to completely empty into the lower portion. Great prop to keep on a science table for the children to tip, turn and watch as the ooze oozes down. Raindrop timer can also be used for teacher or child stress/relaxation, quiet time toy, refocusing prop, anxiety prop, or a timer. Raindrop Timer is 7". Only available in Pink.