Spiked Needle Strips prevent pest birds from landing and roosting where they are not wanted. Ideal for use on rooftops, ledges, balconies, signs, docks, air conditioners, and more. Made of recycled plastic, spikes project up and out from base at varying angles. Resist weather and UV. light. Use flexible material on straightaways, as well as on curves, corners, and irregular surfaces. Strips come in 1-ft.-long panels that may be affixed to any surface using adhesive, screws, nails, or wire ties.