Block Pest Birds from their favorite landing and roosting surfaces with Stainless Bird Spikes. Tough, long-lasting polycarbonate and stainless steel material, provides maintenence-free protection. The spikes function as a 'keep-out' sign for birds. The flexibility of spikes allow mounting on most surfaces and are easy to install with adhesive. Each section of spikes covers two linear feet, and a "spread" or width of up to 6-inch. Stop pest birds including pigeons, sparrows, starlings, crows, blackbirds, grackles, seagulls, swallows and more. Uses: ledges, beams, rafters, ralings, air conditioners, signs, windowsills, gutters, roof perimeters, chimneys, support structures, awnings, poles, lights, statues, trusses, building projections and anywhere else birds roost. 50-Feet per box (25 two-foot strips).