Trackball Mouse,YUMQUA Y-10 Handheld USB Wired Finger Mice Fits Left and Right Handed Carpal Tunnel Users for PS/Windows/XP/NT/ME

NOTE:
White is a Mini size comfortable in smaller hands.
Black is a normal size comfortable in adult hands.

Feature:
It can be operated in various ways to ensure long-term use without harm to
wrist or muscle

No limitation of operational space

Avoid sitting closely to the monitor and reduce the harm of radiation and
eye fatigue

Plug and play ,no software required

Fits left and right handed users

Watching any point-and-click sudden gratification online cinema is
profoundly enhanced by this fun little device. Rock n Roll,

Only take few minutes to adapt. Easy to use and can be used for left/right
hands.

Works well for browsing and reading

A very good trackball for the traveler.