read carefully because you get exactly what is in the picture which is 1-black and 1-red. The quality of the supplied devices is ok and I think it costs 11β¬. Please note the following: The connection to the cable is made via a brass adapter that is screwed into one of the clamp legs. If your cable is going to be connected to a brass adapter, it will either need to be crimped (not the best way) or secured (the best way). A brass adapter is then screwed onto one of the clamp's legs. You will receive 2 sets of fasteners. I had a screw snap from the start, forcing me to use my own hardware. You don't need anything fancy here, so if you've got a can of screws you'll probably be fine if you're having the same problem.