I forget how long ago I bought this - it must be four years ago or even six. It's second nature now, and a joy to use, even under Linux. They do need to be kept clean, obviously. They save a great deal of space as they remain stationary.

Excellent User friendly mouse! No driver CD required.. and very convenient for using in designing!!

These are the best thing made for computer peripherals! Use of one, you do NOT have to move your wrist all over the table to make your mouse move...only small finger movements, not the entire movement of the mouse make your curser work. Also you have the standard right/left click features.