CC50 - Corner cones allow you exclude or trap critters from den openings on inside 90 degree corners of structures. Corner cones have two wing flaps which allow them to be easily attached. Once the corner cone is in place, simply slide your trap or excluder into position and remove unwanted rodents. This cone measures 12"x 5"x 5" and is used with 4" x 4" traps or excluders.