The Duke Dog-Proof Trap Setting Tool makes setting dog-proof traps safer and easier by giving you better leverage and control. Simply position the setter so the two notches sit under the bar that holds the trigger, then place the dog trigger of the Duke trap between the legs of the setter. The opposite end of the tool rests against the spring-powered strike bar, creating a handle that allows you to compress the strike bar and easily engage the dog into the trigger notch with less effort and strain.