Bird Spike 2000 is a low cost bird deterrent that won't harm birds, or the environment. The Bird Spike 2000 is an effective and humane way to deter pest birds from landing on window ledges, rooflines, parapet walls, I-beams, and more. Birds cannot land on the un-even surface, and move on to a better spot. Spike 2000 is made of 100% post-industrial recycled plastic materials. Discarded scrap plastic is ground up and reformed into pellets, which Bird-B-Gone then uses to create one of the strongest plastic Bird Spikes on the market - as tuff as steel, at half the price! Bird Spike 2000 will not break or bend, are protected from U.V. rays, and carry an industry leading five year guarantee. Bird Spike 2000 is one of the longest lasting plastic Bird Spikes available, offered at the lowest rate.