adorn your car vent with a handmade tiny heart clip-on essential oil diffuser! these hearts are needle felted to *ABOUT* 1 inch in size. i hand sew each heart to a car vent clip for a reusable aromatherapy on your drive. whenever your scent needs a lift, simply dab a few drops of your favorite essential oil to the heart. the clip is washable, simply run under cold water and air dry. depending on the oil, expect the heart to lighten or darken over time. these are handmade, no two are exactly alike!