Many of us always spend lots of time on our computers for works or entertainments. Perhaps you would have some trouble on your wrist and butt. Here is one solution for your tired hand by Ergoroller.
Ergoroller should be a massager special for those who frequently face the computers all day long such as officers, bloggers, computer geeks, and etc. Ergoroller consists of nine balls (seems like metal balls) and a base. From the image, it’s so clear that the balls held on the massager can relax the muscle of wrist when your hand holding computer mouse rest on Ergoroller.
Ergoroller seems very simple, but the massager should be useful. If you always feel your wrist in agony, perhaps you could try Ergoroller. The massager costs $24.95 USD. You can get more details or purchase it from its official website.