30mm Refill Pad, Spider Web Aroma Essential Oil Diffuser Locket Necklace, Refill Pads / Replacement Pad Chain:24" Material:Alloy, Main Color: Black Ship All 10 Kinds Color 30mm Pad Locket Lenght 44mm=1.7" Width:33mm=1.3" Height:9mm=0.35'' Do not include essential oils & aromatherapy & perfume & fragrance