Valyria Essential Oil Diffuser Necklace - Stainless Steel Butterfly Aromatherapy Locket Jewelry Hypo-Allergenic 316L Surgical Grade Stainless Steel Aromatherapy Locket Outside diameter:30mm(1 1/8");Thickness:6.5mm; Chain Size:Length:60cm(23 5/8");Width:2.5mm( 1/8"); Beautiful Black Velvet Gift Bag and 11pcs different color of micro-weave, washable, refill Pads Included; This vintage-inspired locket is a great way to wear your essential oil or perfume throughout the day. Aromatherapy lockets make great gifts and are stylish for everyday wear.