/ Instant purchase welcome! No need to ask to buy ❤️ Brand new, unused! Free shipping ❤️ \ ○ Color: Black ○ Size: Free size (for both left and right hands) Innovative technology development: Delivers heat therapy to the deep layers with 12x penetration power, gently caring for fatigue in the wrists and thumbs. 3-level temperature adjustment: Temperature settings of low 45°C (green), medium 55°C (blue), and high 65°C (red) are available, allowing you to care for your hands at your preferred temperature. Support function: The Velcro strap allows you to freely adjust the pressure. Usage scenarios: Can be used in various situations where you overuse your wrists, such as computer work, smartphone operation, childcare, and housework. Convenient design: USB-powered, usable both indoors and outdoors, and a practical design that fits both left and right hands, suitable for both men and women ☆