Kenza Aromatherapy Yoga Essential Oils Diffuser Necklace with Turqouise Bead and Leaf, Locket/Pendant with Chain for Personal Health, Stress Reduction, and Well Being Locket Necklace with chain for personal health, stress reduction, serenity, and well being Get a Variety of essential oils to vary the necklace diffusers scent High quality material and very well made . Chain can be adjusted. 13" Chain + Pendant: Total length 14.5" Eco-Friendly (Nickel Free, Lead Free)