The Logitech T-BB18 Trackman Wheel USB Trackball Mouse is a sleek and efficient computer mouse designed by Logitech. This trackball mouse features a maximum DPI of 1000 and connects easily via USB. Its gray color and compact design make it a stylish and convenient choice for users looking for a reliable trackball mouse. Additionally, the Logitech T-BB18 Trackman Wheel USB Trackball Mouse includes a scroll wheel for added functionality.