The Irri-Tape - Bird Repeller drives annoying birds away with its bright, flashy appearance. The constantly changing colors are a warning sign to birds!Create an off-limits zone for pesky birds by using this Irri-tape iridescent foil which combines holography, wind and light to irritate birds' senses. This is a lightweight, durable, maintenance-free bird repelling product. This bird and pest control mechanism is a visual deterrent which flashes as it moves in the wind reflecting sunlight, or any light, constantly producing changing colors and patterns. Birds pick up this flashing ripple effect as an unsettling danger signal. Not only will the light irritate the birds but the fierce metallic noise the material gives off will also frighten off the birds. Install the tape wherever infestation is a problem and the wind and light will do the rest. You get 100 feet of foil. No brackets needed!