RAKUWA Magnetic Necklace Metax Jewelry Type Black 50cm Relief Blood [Phiten] [Stiff Shoulders] [Stiff Neck] [Improves Stiffness] [Stiffness Relief]

Material: String part (fabric): Polyester, polyester lame String part (core): Magnet Clasp: Stainless steel, magnet Medical device certification number: 224AGBZX00119000 Effect: Improves stiffness at the attachment site and improves blood circulation. Technology: Metax *Precautions for use: Persons using implantable medical electrical devices that are susceptible to electromagnetic interference such as pacemakers, and medical devices that may be affected by magnetic interference such as variable pressure shunts for cerebrospinal fluid shunting. If you are using electrical equipment, please do not use it as it may cause the equipment to malfunction.