Tomahawk's Humane Mouse Trap, Model 101, is a single door trap that measures 10" long, 3" wide and 3" high. It is made out of 28 gauge galvanized sheet metal for maximum resistance to rust and corrosion. Tomahawk's Mouse Trap can be used to trap mice, shrew, voles, small chipmunks, or any small sized rodents. These traps are very effective positioned along a wall, with or without bait.