This Verry Berry refill is for use with the DoorPod™ system air freshener. Refreshes the room in seconds by simply swinging the door. DoorPod™ catches the breeze and releases natural fragrances out through the vented dispenser. Starts to work in 7 seconds. No tape or screws required to install on door. Lasts up to 30 days. For Eco friendly users. Natural Earth-Essence™ ensures the highest quality fragrances for eliminating any unwanted odors.