Scents By C Wooden car Diffusers are perfect for making any space smell sensational! Lasting 3-6 months who wouldn't love there car smelling amazing! Simple wooden lids these can be hung on your car mirror or placed in your cup holder! Instructions of use: Remove Wooden Lid, Remove Plastic Stopper, Replace Wooden Lid and wet lid. Wet lid once every 2 weeks for fragrance to disperse! Clean Up any spillage ASAP as It will damage the surface. keep out of reach or children