Review on Logitech Trackman Marble Trackball Mouse - USB Wired Ergonomic Mouse for Computers with 4 Programmable Buttons, in Dark Gray - Improved SEO by Edyta Chojecka ᠌

With its pros. You can use both hands, accurate, comfortable, the hand has ceased to get tired, like with a mouse, takes up little space on the table, looks stylish, very comfortable. Cons below: It takes a little time to get used to. Actually, I started to mouse right away, but I got used to scrolling for a long time.