Block pest birds from their perches and landing producers prefer stainless steel surfaces Bird Spikes. Solid, resistant polycarbonate and stainless steel provides decades of maintenance free protection. Stainless Bird Spikes not alter the appearance of a building. The ears function to keep-out sign for the birds. The density of stainless steel spikes are branched from the base polycarbonate to offer impenetrable coverage. Flexible tips can be mounted on almost any surface and can be easily installed with adhesive. Stackable 24 Inch sections make it easy to carry a quantity of nails, and help minimize waste. Each foot peaks covered two meters and a spread or width of up to 6 inches. Pests: birds (pigeons, sparrows, starlings, crows, blackbirds, blackbirds, gulls, swallows and more), bats, climbing animals and more. Use: frames, beams, joists, ralings, air conditioners, signs, parapets, gutters, roof perimeters, chimneys, suppor