The wetsuit part goes under straps on the base of the ski and the cable hangs down through the holes. This results in the device offering protection directly below where you sit on the ski. I have witnessed the device deterring large hammerhead and tiger sharks. What happens is whilst fighting a fish like a king fish they generally circle a bit under the ski, this is when I normally loose the fish to sharks. However I have witnessed the sharks trying to get near to the fish but being deflected by the device as they get to close to it.