Kensington Orbit Trackball With Scroll Ring - Space Gray Ball

Spin the dial to move up and down web pages or documents with complete ease. The 40mm space gray balls hard surface is specially designed as a perfect sphere for precise tracking and control.Free downloadable software provides an even more personalized experience, giving you the ability to assign a wide variety of program functions to each of the two buttons, as well as adjusting cursor and scrolling speeds.Delivers precise cursor movement for superior accuracy, so you can get where you want on the screen quickly with less hand movement, improving productivity and efficiency.Soft cushioning supports the hand and wrist in ergonomic comfort for pain-free productivity during extended periods of activity on the computer.Works equally well for right-handed and left-handed users.Quickly get clicking and scrolling with fast, simple installation through the reliable wired USB connection-no batteries required.