Dura-Spike are 100% stainless steel spikes that are a cost effective industrial grade pest bird deterrent. Stainless steel bird spikes stop birds from landing and roosting and are a very effective and humane method of bird control that can prevent pest bird infestation. The base can be cut easily with snips or shears. Stainless steel bird deterrent spikes are more durable than plastic bird spikes. Dura-Spike curves gently or takes hard bends to conform to the building's features. The bird spike strips are 3 ft. L and come in the following widths: Narrow, Wide, Xtra-Wide. Whether you're shopping for the best pigeon spike or anti-bird spikes for other pest bird species, Dura-Spike should be your first choice. Bond included for installation.Where to Use: Ledges, parapets caps, roof peaks, chimneysTarget Bird: Pigeon and largerBird Pressure: Medium (Do not use where birds are nesting)Material: Stainless Steel - 304 grade wires and base welded togetherInstallation: Base is glued or screwed to any surfaceInstallation Level: Easy.