Device for a tow pin to lead a cable, such as a chain, wire, hawser, etc., onboard a vessel, comprising a number of cylinders that can be hoisted and lowered, where each of the cylinders comprises a rotary stopping element, facing each other, to prevent that the cable runs out of the tow pin. Said stopping element can be turned outwards with the help of a piston arrangement arranged in the cylinder, and that the stopping element can be turned outwards in the whole of the working area of the tow pin.