content: Bought one of these a few years ago and really like it. Needed a second one, but when it arrived I discovered a manufacturing error - the rear bottom pads were the same ones as on the front; they are supposed to be thicker than the front ones, so as to slightly elevate the rear so it doesn't wobble on the center screw. You can even see it in the photos on amazon.com So with the same pads front and rear, the pad is worthless as it doesn't sit level, it sits on the center screw and wobbles!Tried getting the correct pads directly from Targus, they said to return it to the vendor. Amazon was nice enough to quickly send a replacement -- with the same problem.Two tries is enough for me, off to Best Buy instead...