This product is a light quantum high-tech space health accessories . According to the research and development results, it shows that the light quantum wave generated by this jewelry Great for the optimization of human cells and the promotion of blood circulation. Each piece of light quantum product, crafted by craftsmen, gives you full of positive energy and fine art. Each product is with Guarantee Card and contains rich photon energy, which can improve your physique. Every accessory is carefully selected by us and hope to bring happiness to customers. Please contact the merchant to select the type you like!