The product is a rare Microsoft IntelliMouse Serial PS2 mouse in a retro ball mouse design. It features a PS/2 connectivity, mechanical tracking method, three buttons, a scroll wheel, and is wired. This white mouse is 4 3/8 inches long, 1 1/2 inches tall, and 2 3/8 inches wide. Made by Microsoft in Mexico, this standard mouse model 68874 is a collectible item for those who appreciate vintage computer peripherals.