Compatibility: Designed for SUUNTO Chest Strap Replacement Adjustable and Comfortable Fit: The wearable size is larger than the adjustable size, stretching more than 1.2 times. The Medium size measures 24.8-36.6 inch,/65~95 cm. Crafted from a blend of Nylon and Spandex, the chest strap adheres closely to your skin. Soft fabrics and adaptive electrodes ensure precise tracking of your heart's electrical signals Easy to Use and Clean: Features the same snap attachment method for easy application. Remember to remove the sensor transmitter before cleaning. Hand wash the soft strap and allow it to air dry naturally Important Note: The package only includes a belt strap. Please kindly check your heart rate monitor model and wearing size before placing an order Name and Date Tag: It is simple to recognize and locate your own heart rate band while taking part in group activities or competitions without making mistakes. Alternatively, you can just jot down dates, results, etc Durable Construction: Made from high-quality nylon and spandex materials that provide durability, stability, and long-lasting performance during workouts and training sessions Rich Green Valley’s heart rate monitor chest strap is an adjustable replacement strap that is suitable for SUUNTO Smart Heart Rate Belt. Specifications - Belt length : Adjustable wearing size between: Large---L:29.5-45.3" inch /75-115 cm Medium--M:24.8~36.6" inch /63~93 cm Small---S:19.7-25.6" inch /55-70 cm Material: Nylon and spandex. Color: Black & Pink & Blue Features - Soft elastic strap provides a comfortable fit. Easy to use, clean, durable, highly efficient and stable. Soft fabrics and adaptive electrodes make it extremely sensitive to your heart's electrical signals. Instructions - Wet the sensors on the inside of the strap. Attach your heart rate monitor transmitter to the strap. Attach the strap around your chest. Make sure the monitor sits above the base of your chest bone. Package Included: 1 x chest belt strap (only strap not including transmitter)