Off! Clip on Mosquito Repellent American Flag Design (Pack of 3) Each pack includes one clip-on fan, 1 refill, 2 AAA batteries. Great for backyard, gardening, watching sports, at the beach, camping, at the park. Patriotic design for many different occasions. Provides up to 12 hours of head to toe protection. Odorless, No skin application necessary. Use refill within 14 days of opening. Active ingredient 31.2% Metofluthrin.