Specifications: Comfortable chest strap for heart rate measurement, suitabe for Polar, for Wahoo and for Garmin products. The intelligent fusion of soft fabric and adaptive electrodes makes it very sensitive and becomes an indispensable part of a heart rate monitor. The most popular heart rate belt in the world is easy to use, very durable. Item Name: Heart Rate Monitor Chest Strap Material: Nylon, Spandex Features: Accurate, Adjustable, Durable Size: 15cm x 15cm x 5cm/5.91" x 5.91" x 1.97" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Heart Rate Monitor Chest Strap