Perfectly sized to fit inside any of our 30mm stainless steel aromatherapy lockets (available separately). Add a drop or two of your favorite perfume or essential oil to one of the pads, then insert it into your locket to enjoy the benefits of aromatherapy throughout the day. Pads may be refreshed with scent as needed and may be changed out as often as the you like; when not in use, pads should be stored individually in small plastic zip-close bags (available separately) between uses to preserve the potency of the aroma.