Drennan Carp Method Hair Rigs, Eyed Barbless Carp Method Hooks are a double extra strong pattern which uses the same proven shape as the barbless carp feeder. It’s perfect for no-knot hair rigs and when fishing the method its special bend definitely helps to hook and land more carp. Tied to a 3″plus (80mm) length of extra strong extra soft monofilament each hair is the correct length for its hook size.