2 Reproach: 1 / When you put the carpet, there is no cut "that" the mm (a little too wide) and therefore it "bomb" (it is not quite flat). I set the bp putting double-sided tape everywhere, so it's perfect (by cons if one day I want to change the location of screws or replace the "arm" system by the system "table" I do not really know if I'll be able to remove the carpet: D 2 / I have long arms, and when I put the mouse in the middle of the extended area, "I have only 3/4 of the arm on the tablet. So it rises, and I therefore must "break" the wrist on the mouse, instead of having him in the lineup. In my case, 10cm longer was necessary.