Bird B Gone MM2001520 Stainless Steel Bird Spikes, 5-Inch Stainless steel bird spikes are an effective, humane solution for deterring large birds from landing in unwanted areas Birds cannot land on the un even surface created by the spikes and will move on to a better spot Stainless steel pins in a U.V. protected polycarbonate base The base of the spike strip is 1-1/2-inch wide and can be glued, nailed, or tied down to most surfaces The spike strips available in 5-inch widths to match the surface being treated