Watch strap for Polar M400 / M430

This watch strap is specifically designed for the Polar M400 and M430 fitness trackers. Made from high-quality silicone, the strap is durable, flexible, and comfortable for all-day wear. It’s water-resistant and sweatproof, making it ideal for workouts, outdoor activities, and daily use. The strap ensures a secure fit with an adjustable design that can accommodate a wide range of wrist sizes. Available in a sleek black color, it maintains the sporty aesthetic of the Polar M400 and M430 while providing a reliable and comfortable solution for active users.