If you are searching for an effective， inexpensive， maintenance-free humane bird control solution， Bird B Gone Plastic Bird Spikes are the perfect choice. Bird B Gone Plastic Bird Spikes create an uneven surface preventing birds from landing and roosting. Bird-b-gone plastic bird Spikes 6ft bird Spikes are physical bird deterrents used to humanely Block large Birds from landing Bird Spikes are not designed to harm Birds They simply create an uneven surface that Birds cannot land on Effective for large pest birds like pigeons， crows， gulls， vultures， raptors Made of stainless steel Plastic Made in USA Your security is our number one concern