A plaster diffuser is an air freshener that can be used in your home or car. Matyjo plaster diffusers are made of non-hazardous plaster. You can chose from four different scents: Roses, Vanilla, Cotton, Coconut and Forest Fruits. By adding fragrance oils in the plaster powder, we get a pleasant scent like any other air freshener. The scent lasts about one month. When it disappears, just add a few drops on the back of the plaster diffuser and it can be used again. Matyjo plaster diffusers come with an essence oil fragrance refill so that you can enjoy your plaster diffuser as longer as possible. All plaster diffusers include a Gift box + Instructions card + 1ml Refil oil.