Locket Antique Silver Waterdrop Crystal Fragrance Essential Oil Diffuser Pendant Necklace Jewelry 1pc locket+1pc necklace+5pcs Pompon Main Material: Copper Size:39*25*21mm = 1.54"x0.98"x0.83" approx; Chain length:31" approx Charms hollow locket for essential oil diffuser. You can put different ball/bell in the locket to make different look pendant Unisex locket ,scent diffusing chamber allows for all day scent after adding just a few drops of essential oil