Bought this to repair a plastic fender on an atv kicked by a cow ,160 staples later the old wheeler is back out doctoring sick calves,yesterday in an overly aggressive momma cow attack I figured the plastics on Florence (my 4 wheelers name) where going to be over and broken, but I could not find even one staple that had failed. I have 2 more fenders to do but at least now I know exactly how I am going to do them to have them last.