Printed in black just below the part number on the bottom.
Printed in black on a label on the bottom of the mouse.
overall: 1 1/4 in x 3 in x 4 in
There are three buttons on this mouse. The right and left button have finger indentations, and there is a cord extending from the front of the mouse, just beneath the middle button, which ends in a male 6-pin DIN connector.