www.doublebullarchery.com request a catalog, and they send you a 3 hour movie, and in there, they have 3 decaps. It is pretty cool. I have really just one concern with these. They are made for headshots, and if you hit them in the head, problem solved. What if you miss the head and hit the body? Will it injure the bird, or not hurt it, cause with blades that big, it sure isn't gonna penetrate very much.