Stainless Steel Narrow Spikes 10ft- Bird Flite Bird Spikes for Bird Control and Deterring Pest Birds

I now have purchased two sets of this product and find it to do a good job at a good price. I use them to deter ducks from roosting on my pool screen enclosure. I was able to screw them into the aluminum channels with a #10 machine screw.

good tool, keep bird away