This petite diffuser is made of terra cotta and has a wide variety of uses. It can be used as a car or room air freshener or even used in a child's room when they're sick. It is sprinkled with essential oils of your choice and shipped in an airtight bag to maintain concentration. Over time the scent wears off and you can reuse with your own essential oils! I apply a new EO each day in my vehicle. It's so nice to choose what you're feeling that day! It comes with a twine loop so it can be hung wherever you choose. Examples of organic essential oil scents to add to your diffuser are: Lavender Chamomile Patchouli Clary Sage Tea Tree Peppermint Sandalwood Vetiver Bergamot Sweet Orange Lemongrass Bay Eucalyptus Eucalyptus Lemon