Description: Anti Birdproof Spikes: Birdproof Spikes are effective to prevent birds and other animals from perching on the wall and house roofs without harming the animals. Effective, low cost deterrent against & intruders.Easy to Use: You will get 20pcs bird deterrent spikes, enough to fit any surface, can be placed on your windowsills, balconies, eaves, fence, rooftops, patio, tops of street lights, railings, or anywhere the birds can perch.Advantage Design: These flexible small birdproof spikes will not leave rust stains or trails on your building, effectively expelling them in a humane manner. Protects your perimeter without adversely affecting the appearance of your house/garden.Easy to Install: Birdproof Spikes can be spliced, tailorable, easy to fix, and placed with a strap, screw, or glue Our fence spikes are wear resistant and durable, will not easy to rust, stable to use.Durable to Use: Anti birdproof spikes made of durable Plastic material, bird deterrent spikes haa weather resistant, so they can be used indoors and outdoors. Our pigeon deterrent spikes use plastic instead of glass shards, and will not cause physical harm to small animals. Specification: Material: PlasticSize: 30cmx4cm/11.81inchx1.57inch Package Includes: 20 Birdproof Spikes Note: Please allow slightly errors due to manual measurement and different monitors.