1) We bought 5 as we had a woodpecker problem of long standing. We have not heard a woodpecker demolishing our house since the moment they were installed. We wanted to see a woodpecker being scared away, but we were not fast enough. 2) Since this is not the season for pecking holes, we are anxious to see what happens when the acorns are in bloom so to speak. Our grandchildren LOVE the spiders. We have names for them – Mammy, Moe, Jack, Zsa Zsa and Slacker Earl. Earl didn’t work until our grandson abused him for awhile, and then he was OK. How’s that for a testimonial? The spiders drop down very easily. A garage door being closed, and car driving in our driveway, a friend honking their horn or the grandkids shouting “attack” is a lot of fun to watch. They scared the UPS guy, made a baby cry and the deer aren’t crazy about them either. I would like to order a bunch for my Manzanita Garden Club ladies, as I have already given them a great testimonial. I’ll let you know how many I need later. Hope this helps.