The Gardner Bug Bobbin Arm from Gardner Tackle lets you set the indicator slack or up tight, which suits long-range fishing, weedy margins, or fishing close to snags. Twin hinges keep the movement free so lifts and drop backs are clearly indicated, and unlike chains, the arm is unaffected by wind. - Made with a 10cm stainless steel arm and fittings - Standard 5mm threads to fit many popular bobbin bite indicators