Ying Yang Quantum Pendant Necklace - Reduces Pain and Stress. Improves Sleep, Energy and Balance. High Power Magnetic Therapy. - 20% Off Limited Time Holiday Special - EJCN-045A Type: Pendant with Hemp Necklace Color: Silver and Black Size: Pendant: 4.2 cm Ions intensity: 3000 Gauss Materials: Stainless Steel, Tourmaline, Lava