It works just like a sand hourglass: first you pop one cup and put tea leaf and hot water in it; twist the timer to set the steeping time. The minute indicators can be read from both directions; flip to start the steeping; the tea is being steeped; just like the sand in the hourglass the liquid tea will drain into the bottom cup when the steeping time is up. It visually tells the user the tea is ready; remove the top parts and enjoy your tea.
Unfortunately, it does not appear to be for sale, just a design concept. OK, famous designer Pengtao Yu, we’re ready to add this beauty to our tea toys collection.
UPDATE: It’s an award-winning design, and lots of folks want to buy it, but it is still not for sale. You can get on their (probably endless) waiting list HERE