Kensington - Orbit Wireless Laser Trackball Mouse - Black

the picture i saw looks kinda like the trackball mouse. the photo just makes it look taller than is is for some reason it's a decent mouse for someone with smallish hands. Not quite so much if you have large hands as i do. it works good but i have to shift my grip frequently to click on the buttons. That could be partially from the old trackball mouse i had that was fat in the back and skinny in front. This one is skinny in the back and fatter in front.

It's 4" long, about 1 1/2 " high, the back is 2" wide and the front where the ball is, is 3" wide. I have a small hand, and it is small enough for me.

Yep! Don’t know where the trackball picture is!

For larger hands, I always prefer the Logitech TrackMan Optical. It uses finger control of the ball instead of the side-ball for the thumb. I find that I have better control with fingers on the ball than thumb. Bought my first one (wired) in 1996 and it still works perfectly after all those years of almost daily use in CAD applications.

The scroll wheel function is handled by sliding your finger up or down on either side of the collar surrounding the ball. In the photo the collar looks silverish on the one i have its black and slippery. occasionally it requires you to slid your fingers on both sides at the same time to make it work.