Larger sized bird posts for Bird Wire systems to protect against pigeons. Wire is suspended between bird wire posts to prevent large birds from landing. These bird posts are designed to be installed by knocking them into Anchor Rivets. Use these posts when multiple rows of Bird Wire is needed. These posts are to be used in conjunction with Bird Post Stainless Steel 120mm x 4mm. When installing these posts it has to be positioned at the rear of the ledge. Posts need to be positioned at 1.5m intervals along the ledge.