The Safer Home SH1200 Outdoor Mosquito Repellent & 4pk refills SET is an essential oil pad holder designed to repel and deter mosquitoes outdoors. With a battery power source, this product provides effective prevention for up to 12 hours. The set includes a white and grey-colored essential oil pad holder with a pack of 4 refills, making it convenient for outdoor activities like camping and hiking. The product is pet and child safe, offering peace of mind while enjoying the outdoors.