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Title: They don't work
Review: I bought these, hoping to finally get rid of the numerous spiders I have. I could hear them ticking away in the different rooms I placed them in, but that's all they do---tick. The only thing they repel are the people who ask, "What is that noise, sounds like clicking, or tapping." I still have multitudes of spiders---who apparently could care less. No matter what the brand, I think you'll find these useless.
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