The belt's clasp is broken, so we recommend providing a new one. [Design] The navy silicone band is lightweight and offers a comfortable fit. Its simple and stylish design is suitable for a wide range of occasions, from casual to business. [Functionality] Equipped with a heart rate sensor, it's helpful for health management. It tracks daily activities and contributes to fitness improvement. [Charging Method] Easily rechargeable using the included USB charging cable. It's easy to charge, making it ideal for everyday use. - Color: Navy - Material: Silicone - Charger: USB charging cable - Sensor: Heart rate sensor Thank you for viewing.