Tomcat tunnel trapping system, tunnel station and 2 snap traps. the tomcat tunnel trapping system is an excellent way to control pests like chipmunks, squirrels, rats, or other pests when poison baits or other control methods aren't an option. the complete trapping system includes 2 heavy duty reusable snap traps, 1 protective tunnel, unlocking key and a key cap & insert for keyless use. place the tomcat tunnel trapping system in areas of pest activity such as yards, gardens, landscaping, or indoors in sheds, garages or barns. quick, humane way to eliminate a variety of pests like chipmunks, squirrels and rats. tunnel made of high quality polypropylene shelters traps from dirt and moisture. locking tunnel protects traps and reduces potential risk of tampering by children, pets and other wildlife.