|Bird Spikes. (25 feet standard) Birds instinctively fly to \"landing strips\" such as roof ledges, windowsills, building projections, signs, statues, trusses and beams. But now you can keep them from landing on your property...easily, inexpensively..and permanently! All it takes is an application of SPIKES needle strips. There's nothing like this new roost inhibitor.Easy to install and lasts for years. Comes in 10, 50, and 100 foot lengths. Call or e-mail for prices and orders.