This trap measures 4 x 4 x 17 so it can fit in just aboutany place; a gutter, along an attic wall, or out in the open. It has a smallwire treddle to cross to get to the bait location, and once fired, your critteris caught for keeps. It works good on rats, squirrels, flying squirrels,chipmunks, weasels, or that chicken coop mink. Painted for weather resistance.