Defend your feeder and its contents from raccoons, squirrels, hogs and other pests. Just fasten these sharp strips of Shark Teeth to your feeder’s legs with the included screws through pre-punched holes. They come in 36" strips that are 1.5" wide and reduce the need for varmint guards, traps and cages. Shark teeth can also be used to keep livestock from licking or rubbing on your feeder legs and birds from roosting on the feeder. Per 3.