I've never seen these tea cups before and when i came across them, i had to have them.  My wife and I love all the different Zwilling Double-wall glasses we have.  All the different varieties from expresso cups to coffee cups (with & without handles)and now tea cups.  I had to try them out when we got home and they definitely did not disappoint.  I love everything about it.  From the shape, size, ability to keep my tea HOT!  I just wish there was more than one box in the store.  You have a Zwilling customer for life!