I haven't used this fall arrestor yet, but it was everything I expected. 16mm rope and the length as described. Delivery was timely. This was also my first purchase through the Alibaba platform and although I had been somewhat apprehensive at first, I know now I was protected from the beginning. A great experience all over and grateful. 4stars for the supplier because I wasn't fully aware of the process so there were some communication hiccups. I'm so much more confident. 4stars for the product because I haven't used it yet but I'm confident with what I've seen and handled so far. Ka pai rawa.