High-quality materials: The stems and base of the pigeon spikes are made of stainless steel. The pigeon spikes will not rust, weaken when exposed to the environment, and will never change during their long lifespan, even when exposed to sun, wind, and rain. Effective defense: The stainless steel bird spikes are effective and humane. They not only deter birds and other animals from landing and perching, but also do not cause serious harm to them. They act as a visual and physical deterrent that does not allow animals to have access to a certain covered area. Easy to Install: Installing the anti-pigeon spikes only takes a few minutes. Simply insert the anti-pigeon spikes into the base, and then use nails, screws, cables, or mounting adhesive to fix the anti-pigeon spikes to the window sill, balcony, and railing. Wide range of applications: The anti-pigeon spikes can be installed in any location and are very suitable for window sills, railings, roof edges, etc. The anti-pigeon spikes can