Four Paws Keep Off Indoor and Outdoor Dog and Cat Repellent Four Paws Keep Off Repellent will repel dogs and cats for up to 24 hours when applied daily. For use indoors and outdoors. From the home of quality pet products Four Paws Keep Off Repellent will repel dogs and cats for up to 24 hours when applied daily Safe and effective for use indoors and outdoors From the home of quality pet products