Brand NEW! 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. Packaged Quantity: 1 Product Type: Trackball Pointing Device Pointing Device Connectivity Technology: Cable Movement Detection: Optical Scroller Type: Scroll Ring Ergonomic Fit: Symmetrical Interfaces/Ports Pointing Device Host Interface: USB Physical Characteristics Color: Black Miscellaneous Country of Origin: China - All international buyers are responsible for all tax, duties and/or customs fees.