New Measuring Cup

My boss (a juice nut) brought a new kind of measuring cup for liquids to work. Instead of having to hold the cup up to see the measurements, you can look at it from above. It has a colored ridge of sorts inside and tells you exactly where you are as you fill the cup.

Has anyone heard of this before? If so, where can I get one? My boss said only his wife got it so he doesn't know.

Thanks!