This one of a kind boho style clay car charm works as a rearview mirror hanging for your car, as a mini wall hanging for your home, or even as a tie on accessory to any handbag or backpack. Choose from a terracotta color or granite color. They are finished off with a leather tie-on string and wood beads. Instructions to use as a diffuser: Just add a couple of drops of your favorite essential oils to the top of the wood bead (note: oils may change the color of the cord). It measures approximately 6 inches long not including the hanging string. Please use this accessory in accordance with your state's specific laws in regards to rearview mirror hanging objects.