These hanging diffusers are perfect for enhancing the scent of a space. Use them in your car or any room of your home, even your locker. The wooden cap acts as the wick to disperse the oil fragrance just like a reed diffuser. Also, choose from a variety of scents and fillers to create your own style - fill with flowers, gold flakes, crystals, tiny butterflies, little ducks for the Jeep lovers, rainbow turtles, tiny gummy bears, or leave plain. To use: Remove the wooden cap and then remove the plastic cap from the inside. Replace the wooden cap and turn bottle upside down for a few seconds. Tie bottle to wherever you would like.