This wrist rest has a split down the middle with a very hard wedge just below it. My wrist ends up on the hard wedge most of the time if I position it for use with a mouse. There seems to be no reason for this awkward and poorly functional design except to show off the word "Kensington." Also the foam eventually settles down and gives no support whatsoever. If it were designed without the split and wedge area, I would give it two more stars, but it's not. I won't buy another one now that the foam on this one has compressed.