As my tong was delivered, was already a plastic particles (spacers?) Canceled (due to shipping?). I do not know for what this "spacer" supposed to be good. On Youtube I've watched videos on creating Cat5e cable and nowhere was this part of the pliers in use. Top left the pliers has a "lock" (closed to the pliers when not in use to keep). The locks on my pliers but nothing. This metal part is bent with me. Possibly Is it in my review for "Second choice," I do not know. Porto I paid none. Return almost not worth it. The teeth of the compression of the cable ends to the plug fit (yet). The knives are also all (still) hot.