Phiten RAKUWA Neck EXTREME Crystal Touch Necklace 50cm [For Shoulder Stiffness and Neck Stiffness] [Utilizing Phiten's Advanced Metax Technology] Retail Price: ¥19,800 A high-quality necklace with a natural stone-like feel. This high-powered necklace utilizes Metax technology. It has a transparent, natural stone-like appearance. It's lightweight and water-resistant, making it perfect for everyday use and sports. The clasp uses aluminum. It can be easily attached and detached with one touch.