Stainless steel pigeon bird spikes are used on buildings and structures to prevent birds from landing and roosting. Pigeon spikes are an effective, humane and cost-effective bird control solution that will not harm birds. Our pigeon spikes come in 2 ft sections are ready to use and easy to install with no assembly or maintenance required. Not recommended in areas where birds have been nesting. See ledge chart in full product description for help selecting the appropriate spike width for your situation.