Where do I start? Wow, what a hit with my family all the way down to my one year old grandson!! The woodpeckers have not touched the house since the day I installed the spiders. (installation could not be any easier by the way) My wife and I were a tiny bit skeptical upon opening the package, but those fears were quickly laid to rest. Now these poor spiders will probably have to be replaced (gladly) once a year from overuse, because when my grandson is visiting, all he wants to do is play with “papa’s spiders”. Have had to replace the batteries twice already. But these spiders are well worth their cost. Woodpeckers had put 19 different holes in our stucco before the spiders, and ZERO since then. So thank you very much for your wonderful product.