This 10 ml essential oil roller is filled with black obsidian gemstones, a strong protective stone forming a shield against negativity.  This stone is touted as bringing clarity to mind and clearing confusion.  The essential oils mixed in this roller include both peppermint and orange oils safely dilluted to 5% with sweet almond oil making them safe for adult use.  Caution should be exercised for those that are pregnant or breastfeeding.   Not intended for use on children.