This necklace is manufactured with materials which are surgical grade 316L stainless steel and felt pad. With this essential oil necklace, you can simply wear your favorite essential oil diffuser and enjoy all day long. Features -Material: Stainless steel and felt pad. -Size: About 3.20X3.20X0.80cm / 1.26X1.26X0.31inch. Note: random accessory -Chain length: About inch. -Pendant diameter: About 1.18 inch -Cushion diameter: About 0.87 inch. -Cushion thickness: About 0.11 inch. -Simple in structure, very easy to replace the cushion inside. -Perfect for neck decor and air cleaning use, practical and stylish. -This pendant will add more charm and style to your whole dressing. -It comes with unique tree modeling design, which is chic and delicate. - Features the aromatherapy structure design, which offers you aroma. Package list: 1 x essential oil necklace