Keep your car smelling amazing with our new Car Diffuser! This hanging diffuser comes filled with your choice of fragrance and lasts for 2-3 months. With a variety of scents to choose from, you're sure to find the perfect one for your car. Keep it smelling fresh and clean! How to Use: Carefully remove plug, reattach wood top, invert till wood becomes slightly saturated, hang from your rear view mirror. Comes in a case of 4.