When I was using a computer for a long time, my arms and shoulder would inevitably hurt, if I thought that something was nice, I found a good mouse pad and bought it. Is good! It is! When I told my son, I had someone using my son's company and said that they wanted me to use them, so I will repurchase.
If you do input work with the mouse for a long time, you will have shoulder. Using this mouse pad is less tired because you can deposit your wrist in the bulging part. Optical mouse can be used without problem, it is easy to use because there is no slip with the desk face.