Feature: 1. Lymphatic Drainage: Terahertz contains a variety of trace elements needed by the human body, which can strengthen the physique. Accelerate skin regeneration and detox, improve skin elasticity, and help lymphatic drainage. 2. Hot Cold Compress: Terahertz stone is a powerful healing stone with high vibrational frequency and thermal conductivity. Can increase blood circulation, promote metabolism. With the ability to quickly absorb temperature, ideal for hot compress (relaxing muscles and opening pores) and cold compress (contracting muscles). 3. Soreness Relief: Helps relieve tension and irritability, relieve your daily muscle aches, headaches, cervical spondylosis, and beneficial for your physical and mental health. 4. Skin Firming: Massage to lift and firm skin, suppress the appearance of fine lines and wrinkles, promote absorption of skin care products, reduce puffiness, eye bags and dark circles. 5. Fine Workmanship: Attention to details, smooth surface and mellow corner, will not scratch or damage skin, can be used with confidence, ergonomic design, easy to hold and use. Specification: Item Type: Gua Sha Tool Material: Terahertz Product Size: Approx. 95 x 61 x 6mm / 3.7 x 2.4 x 0.2in Applicable parts: face, neck, back, breast, legs, feet The function of energy stone is to achieve the purpose of odor absorption, temperature regulation, humidity regulation, electromagnetic shielding, energy saving and health efficiency through self purifying, self healing, self releasing, self adjusting and adaptive high tech materials. Energy stone contains more than 30 kinds of trace elements that are beneficial to the human body, such as selenium, zinc, and calcium. The initial wave released by these elements is in the same wave state as the initial wave of human cells, which can resonate, make human cells and tissues more active, promote blood circulation, promote metabolism, and eliminate waste in the body. Function: 1. Reduce facial tension 2. Increase skin elasticity, firm and tighten skin 3. Suppress the appearance of fine lines and wrinkles 4. Reduce puffiness, eye bags and dark circles 5. Helps penetrate beauty products such as creams and serum for deeper skin absorption 6. Promote blood circulation to the face for a healthy luster. Package List: 1 x Gua Sha Tool Note: Please allow slight error due to manual measurement. Thanks for your understanding.