BedBug 360 Repellent Balls are a chemical-free, pet-safe pest control solution for bed bugs. They are EPA 25B approved and safe for humans and pets. Once activated, each ball creates a 9-ft. radius of protection. They can be used in many areas, including: Luggage Hotel room drawers and closets In bed when sleeping on a shared mattress Briefcases and handbags Backpacks for school Lockers at school Gym bags Dorm rooms Storage areas You can place the balls under or around a bed or affected area. They are infused with essential oils for a light, refreshing scent.