Dura-Spike Bird Spikes are 100% stainless steel and are available in 3-ft. lengths for fast application. The base can be cut easily with snips or shears. It curves gently or takes hard bends to conform to the building’s features. The blunt tips on the ends of each spike cannot hurt birds or humans. Pigeons and larger birds are not able to gain a foothold on the protected surface, and are forced to take their mess elsewhere. Bird Barrier’s Dura-Spike Bird Spikes are warranted for 10 years, and should perform for many more years.