10 Pack 1-3/8'' Chain Link Fence Extension, 17'' Fence Extension Height, Galvanized Post Extender for Dogs and Privacy (Black)

I'm still curious if things like these Amazon.com: 10 Pack 1-3/8'' Chain Link Fence Extension, 17'' Fence Extension Height, Galvanized Post Extender for Dogs and Privacy (Black) : Industrial & Scientific but put at an angle could accomplish a similar thing to the purrfect fence. I bought some to try but my wife was worried about hawks in our area snatching our kitties and wanted something that covered the whole top area rather than just the fence line.