Review on Black PERIMICE-720 Wireless Ergonomic Trackball Mouse With Adjustable Angle By Perixx - Boost Your Productivity by Joshua Cameron

I should have measured it out before ordering it, I had no idea it was so big. I am trying to find a mouse that eases my arthritic fingers and this one made me have to spread my fingers a little wide. I think for someone with a big hand it would be great. My hand isn't tiny but I am trying to make my fingers work more efficiently and this didn't work so well. I am keeping it because you never know when you're going to need a mouse at 2 am when all the stores are closed, but it didn't solve my hand pain.