Thank You Logitech!!!

These are not for everyone. It takes a little while to train yourself to using it, deciding what functions to use for the secondary switches, speed of movement, etc. But, overall I cannot suggest a better product for any use.

This is my second Trackman, I had my 1st one for many years (15) and the left button switch finally gave out; I can't imagine what the click-count was, but it had to be very high; I hope this one lasts as long; Mostly, I am glad this product still exists, it is sort of unique.

None..., period; When my last one failed after 12-15 years, I had to use a standard mouse; I thought I was gonna' die..

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.

Yeah! Track balls by Logitech!

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.