With so many reports of coyotes and cougars in our area, I thought I would share what I found for small dog owners. This is quite genius...a dog vest that allows you to add as many spikes as like with Velcro. This is not only great for protection from large predators, but also other large and possible aggressive dogs that may be in your neighborhood. What about large hawks that can swoop down on your small dog...I can see this vest being a great deterrent there, also.