Bird-B-Gone 5" x 20' Stainless Steel Bird Spike. It keeps birds from landing or nesting on ledges, parapets, roof peaks, or anywhere birds land. Ideal for pigeons, seagulls, crows, and other large birds, it does not harm birds or people. It attaches easily with screws or adhesive and has a UV protected polycarbonate base. Flexible and can bend 360 degrees, it requires no assembly. It comes in ten 2' sections and is boxed.