The Intimidator is a professional grade avian deterrent which uses motion and bright flashing to scare away birds from unwanted areas. Birds can cause serious damage to homes and businesses. The Red Intimidator features one side of red reflective material specifically designed to deter gulls. The Intimidator is lightweight yet heavy duty and needs very little air current to create a dynamic visual effect that frightens birds. Dimensions of the Intimidator flashing pieces are 14"L x 4" Wide. Comes with a 17" mounting arm.