The OEM Kensington Orbit Trackball with Scroll Ring KMW72337 offers all-day comfort from a leader in trackball innovation. The scroll ring allows for fast and easy scrolling of web pages and documents, making it efficient for both work and leisure. This trackball design uses far less desk space than a traditional mouse and features optical technology for precise tracking, eliminating the need for cleaning. Its ambidextrous design accommodates both left-handed and right-handed users.