Features: Experience superior comfort with our breathable nylon bands, designed specifically for heart rate sensors, offering adjustable sizing from 175mm to 260mm for a sweat proof and securely fit during intense workouts. Featuring nylon and PC construction with a hook and loop closure, this strap provides lightweight support at just 20g per set and comes in 2 color option for unique styles. Ideal for fitness enthusiasts, athletes, and health focused users who rely on devices for accurate heart rate monitoring and need a replacement strap for everyday tracking. Perfect for high energy activities like gym running, cycling, and marathons training, where its breathable design ensures all day comfort and stability without irritation. Enhances your experience with this adjustable nylon sports band, delivering long lasting performances and effortless customization for any lifestyle or sport. Specifications: Component:Nylon+PC Length:Approx.260mm-175mm (10.23"-6.88") Package Includes: 1Piece Wrist Strap note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.