Kensington Corded Trackball Mouse, Optical, Black/Blue, USB Black/Blue K72337US

All-day comfort and scrolling come together in the Kensington Orbit Trackball with Scroll Ring. The scroll ring allows you to fly through web pages and documents. And all while delivering comfort and space savings no mouse can match. USB interface allows easy connectivityOptical LED for smoother movement and hassle-free performanceScroll ring offers quick and friendly navigation for documents and webpagesWhether you are a lefty or a righty the symmetrically shaped trackball suits both