The Perfii Fabric Replacement Band is compatible with Apple Watch Series 1-7 and SE, available in sizes 3840mm and 4244mm. This band is made from high-quality fabric material that is comfortable to wear and durable. It features an adjustable hook-and-loop closure for a secure fit and easy adjustment. The band is also sweat-proof and easy to clean, making it perfect for everyday use and workouts. Overall, the Perfii Fabric Replacement Band is a stylish and practical choice for anyone looking to personalize their Apple Watch.