38mm/40mm/41mm suitable for 5.6"-7.1" (140-180mm) wrist ,42mm/44mm/45mm/46mm 49mm suitable for 6.2"-8.3"（160-210mm) wrist.The watch band can resist the intrusion of liquids such as water droplets and sweat in daily life, and is especially suitable for wearing in various underwater activities or sports.The silicone watch band is easy to clean. You can rinse it with clean water to remove dust or stains, and it is resistant to dirt.
