Bird-X SP-10-NR Plastic Bird Spikes Kit with Glue, 10'"BIRD X" BIRD SPIKES KIT Bird X polycarbonate plastic bird spikes are used on buildings and structures worldwide to eliminate the roosting and nesting surfaces of pest birds. Birds avoid landing on spikes as humans avoid walking on a bed of nails. These spikes are not lethal, just extremely irritating, intimidating, and uninviting. Polycarbonate spikes are clear and lightweight and provide a low profile method of keeping birds off your property.