I bought a pair today and they are not exactly the same as the ones from
Kmart. The Kmart holders have an adjustable width on the upper part of the
holder (the forked part). That's kind of important if you guzzle obnoxiously
large sodas like I do. Although its arms are fixed, they still seem to be
able to accommodate most travel mugs, coffee cups, glasses and the like just
fine.
Walter