For so little money you expect not much, but you will be pleasantly surprised: fast delivery inkl.Bohrer, instructions and everything you need. I have a large ship Chrysler 300M that is huge and absolutely confusing. Cable lengths are sufficient for the Great, drill fits in diameter to the sensors, manual is understandable. I have the sensors mounted to have to cut without the bumper in half an hour. Control unit connected in the trunk in the side cable to the reversing lights, sensors clipped (well labeled and thanks pokahoke plugs foolproof). Then use the display part mounted on the rear shelf and ready. When reversing, I have not even turn around, because the display in the mirror is visible on the rear shelf. What more do you want? The only difficulty was to bring the cable from the outside (Bumper) into the car. In my fortunately no drilling was necessary because a passage was present, which was sealed with rubber and sealants. If you look carefully, each car will probably have such places for wiring penetrations. Sensors are a bit slow in the implementation of the signals, which is why you should not rush to approach the obstacle; but who does? Display is very accurate and if it permanently glows red and the digital display shows "0" are 20cm left; This is probably due to the partly existing towbars? Still great, since one must also to the trunk and must not pull over to 5mm on the other. Thin rods of no parking signs do not always recognize the system, but with lanterns (thicker than no parking poles), the system proposes to fit. I wanted only a rear camera, but I refrained, because you on the angle of the camera (60-120 °) sees everything which is not at the sides. So a nice gimmick, but not helpful at the sides at the sloping parking in a parking space. The sensors, however, capture the whole area, including the sloping sides of the bumper. In my view, highly recommended.