After about 10-15 years old my palm rest was worn. Did I not much thinking and the resort here (can give unfortunately, otherwise the part would be packed declined). Firstly, it is far too hard and therefore very uncomfortable, even more uncomfortable than without edition. Secondly, it is simply too small. I use the thing in a normal keyboard (Cherry G 224), since missing about 10 centimeters around the keyboard completely covered. I once read an attached image for size comparison with a normal edition. So do not touch, here you definitely saves on the wrong end.