Computer Accessories & Peripherals Trackman Marble Trackball Mouse – Wired USB Ergonomic Mouse for Computers, with 4 Programmable Buttons, Dark Gray

TRACKBALL COMFORT - Sculpted ambidexterous shape supports your right or left hand and stays in one place—move the cursor without moving your arm
CONVENIENT CONTROLS - Moving quickly between documents or browsing your favorite Web sites is a breeze with large, easy-to-reach Back/Forward buttons
ZERO SETUP REQUIRED - Flexible wired connectivity means you just plug the cable into your USB or PS/2 port - it works right out of the box.
PROGRAMMABLE CONTROLS - Configure the buttons to do exactly what you want like switching applications, opening browser windows or jump to full screen while watching videos
BUILT BY Computer Accessories & Peripherals - This mouse comes with the quality and design we’ve built into more than a billion mice, more than any other manufacturer. System Requirements: Windows Vista Windows 7 Windows 8 Windows 10|USB port|CD-ROM drive|Mac OS X 10.4 or later

With a sleek ambidextrous design that fits either hand comfortably, the large Marble trackball and advanced optical technology, the TrackMan Marble provides the smooth tracking and superior precision many have come to associate with DDDD !