Victor Rat Trap are made from FSC ceritfied wood. The snap wire part of the Victor Rat Trap is strong enough to break your finger. Rats are naturally curious so if you place a piece of bait on top of the plastic triggering which is a lot more sensitive than metals ones it will trap your rodent at that point. When placing the trap make sure its perpendicular to the wall, so that the trigger end is towards the wall on the hard surface.