Three brand new boxes of OFF! Clip-On Mosquito Repellent Refills. There are 2 refills in each package, so there are a total of 6 refills in this listing. The refills work with all OFF! brand repellent fans. The insect repellent is supposed to last up to 12 hours. Comes from a smoke-free and pet-free home. Thanks for checking out my listing!