Get in touch with your dark side with this 3-bead roller of Matte Onyx. The 8mm stone beads spin easily and are quiet and smooth. Matte Onyx is a great grounding stone. It can feed your "outside the box" thinking and spirituality while helping to control emotions. Onyx helps eliminate negative thinking and is a good stone to meditate with. The necklace is 18" stainless steel flat cable chain and the pendant measures 1-5/8". Both are tarnish and water resistant.