The Kensington SlimBlade Trackball puts comfort and productivity at your fingertips. The slim, low-profile, ambidextrous design provides all-day comfort while the advanced dual laser sensors and large ball deliver exceptional precision. For even greater productivity, the four programmable buttons can be set to the functions or keyboard shortcuts you use most. Its ergonomic design requires less arm and wrist movement and takes up less desk space than a traditional mouse. Features: • Silver metallic finish • Laser tracking for precision cursor control • Free software for button customization • Compatible with Windows and macOS