Balance your body from the core. Elg's vibration technology! Elg is a functional product that stores vibrations at a special frequency in rare mineral ores. The vibrations at the subatomic level resonate with the body like "synapses," which command nerve transmission, and are designed to improve balance and performance. [Product Name] Synapse Necklace SPACY [Size] 49cm [Color] Gunmetal x Grand Blue [Material] Loop (Φ2mm): Stainless steel (surface: resin coating) Attachment: Lightweight aluminum alloy, neodymium, contains mineral ore/rare ore [Weight] Approximately 9g [Country of Origin] Japan Thank you for viewing. I purchased this, but it didn't fit, so I've been storing it.