Purchased from Red Blossom back in February. Glazed porcelain. Fits one teapot nicely. So, more of an interestingly shaped tea boat than a tea tray. I don't use it anymore -- I've found a simple, small plate works better. (You can tell I'm a very good salesperson.)
Dimensions are: length 7.25", width 5.75", height 2.25"
One thing to note is that the handle of some teapots will run up against the perimeter of the center hole -- so you've got to turn the teapot so that the handle fits in the sloping part. This is just barely the case with the pictured shui ping -- I have a slightly smaller shui ping (~100ml) for which it isn't the case.
RB still has these in stock for $128. Asking $65 + shipping. Contiguous US only please. Can ship within 2-3 days after payment is arranged.
http://s28.postimg.org/csveaz69p/0913151708.jpg
http://s30.postimg.org/rgq64gfz5/0913151707a.jpg
http://s16.postimg.org/n57yapubp/0913151711.jpg
Edit: Sold!