Features: Enhance Physical Fitness: Terahertz contains a variety of trace-elements needed by the human body. Long term wear can enhance physical fitness and allow you to have a good body. Elastic: Made of durable elastic thread, it is guaranteed-that terahertz bracelet will not break easily when worn on the hand, and the bracelet is sturdy and durable. Good Thermal Conductivity: Terahertz ore has good thermal conductivity and specific heat characteristics, and the temperature can be raised and lowered-immediately with a small amount of energy. Ingredient Safety: The terahertz bracelet uses natural energy stone, which will not cause harm to your-health even if it is worn for a long-time, so you can use bracelet with confidence. Concealed Rope: The elastic rope of the terahertz bracelet is concealed in the bead hole, which ensures a clean surfaces and makes the bracelet look more simple and beautiful. Specifications: Material: Terahertz Circumference: Approx.18.5cm/7.28 " Suitable for Wearing Around the Hand within 16.5cm/6.49" Note: Please allow 1-2cm errors due to manual measurement,Please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Piece Bracelet