Turbo Mouse Pro is the premier trackball for Mac users - six DirectLaunch buttons provide fingertip access to your favorite Web sites or applications. To set a DirectLaunch button to a Web site simply press and hold - it's that easy. Four programmable mouse buttons combined with the enclosed MouseWorks software let you handle repetitive tasks with a single click. Stainless steel bearings and large ball give you precise tracking and maximum durability, and an integrated scroll wheel moves you quickly through long documents of Web pages.