We are offering polyester rope lead core ropes are manufactured from fiber wrapped lead lines to make the ropes as heavy as manila ropes. lead core ropes are used in commercial fishing, particularly as net bottom lines. specifications (3 strand) : tolerance : up to 14 mm = + / - 8% 16mm & above = + / - 5 % standard coil length : 220 mtrs other lengths are available on request. colours : aqua green , yellow , white and blue.