Arrived as planned. Was well packed. The heavy-duty fork is made of solid material. A very ingenious design can be used to install at 50 or 30 amps simply by swapping the plugs. Very well constructed inside as each connector is snapped in to make them secure. They can also be partially removed to connect the wire and then insert it into the slot, as connecting the wires is a bit more difficult after inserting the blades into the slot.