Top Fire Button Compact Joystick has the same rugged construction and smooth operation as Super Joystick. Nylon and steel construction. Microswitch reliability tested to 10,000,000 cycles. 8 way operation. Compact size, installs in 2.5 inches. .187" terminal silver contact microswitch standard. Adapter plate for metal control panel mounting sold separately (part number 50-7000-00).