Essential Market Celtic Aromatherapy Essential Oil Diffuser Necklace Jewelry With Chain and 5 Refill Pads Unique Celtic design locket style essential oil diffuser necklace so you can now wear your favorite essential oils. Every aromatherapy necklace includes 5 pieces washable and reusable highly absorbent synthetic felt pads in different colors, giving your pendant different lookings everyday. Strong magnetic colosures and solid back insure you never have to worry about getting oil on your clothes. Pendant is made of premium hypo-allergenic 316L stainless steel for long life and durability.