HUMANE YET EFFECTIVE DETERRENT: Tired of constantly dealing with bird poop? Pesky rodents invading your property? Installing these spikes for outside are an effective, yes humane solution. Wont cause great harm, however will stop and detract from landng on these spikes. UNIQUE SPIKE PATTERN: Our unique pattern does a better job than our competitors from stopping larger birds, as randomized pattern amkes it harder to land vs standard plastic spikes with repetative pattern. EXTREMELY DURABLE: Made of high-quality Plastic these spikes are stronger and more durable. Compared with our competitors, our bird and rodent spikes are more durable and long lasting, and require no maintenance, even when installed outdoors. WIDE RANGE OF USE: These spikes are effectice on may diffrent types of airbourne and land invaders. Pigeons, crows, seagulls, grackles, squirels, Racoons, Cats, and even human intruders. INDUSTRY BEST 5 YEAR SUPPORT: We stand by our product like no one else, thast why we provide the best warranty in the industry, and all of out customer support is right here in the USA see