This Microsoft IntelliMouse in white has two mechanical buttons and a scroll wheel. It measures 4.25" in length, 2.5" in width, and 1" in height. The vintage ball mouse is PS/2 compatible and has a model number of X04-72167. The trackball type mouse has a tracking method of mechanical and a number of buttons of two. This unit features a scroll wheel and was manufactured in China. The brand is Microsoft and the unit quantity is one. The custom bundle is no and the country/region of manufacture is China.