I am not sure the of the size of the duke traps. They were rated for raccoon and about the size of my hand when set. I can check next time I’m out there. I plan on buying more traps and setting them out in front of every critter hole and fresh slide I can find. I just hope my bass are ok. I have spent way too much time eradicating catfish and stocking bass and bluegill to get the pond on track. I’d hate to see my bass gone. Won’t know the damage until spring (when it’s easier to catch multiple bass.)