Please kindly noted that this item is sold by GGuo from Joybuy marketplace. Specifications: Material: Nylon and Spandex Total length: about 98cm / 38.58 inches Two hole distance:45 mm / 1.77 inches Color: Black/Grey/Light Blue/Orange/Pink/Sapphire Blue/Yellow NOTE: Heart rate sensor NOT included.(Compatible with all heart rate sensors ) Description： 1.Comfortable and adjustable elastic strap. 2.Easy to use, durable, highly efficient and stable. 3.With the chest strap based on high quality material, it can be attached to your skin closely. 4.Soft fabrics and adaptive electrodes make it extremely sensitive to your heart's electrical signals. 5.Uses the snap confirmation method. 6.Compatible with all heart rate sensors (ANT +, Bluetooth 4.0, 5.3 K). Package included： 1*Adjustable Chest Mount Belt Notes: 1. 1 inch = 2.54 cm 2. Please measure it yourself to choose the right size. 3. Due to the difference between the different displays, the picture may not reflect the actual color of the item. Thank you! ?COMFORTABLE TO USE?Made with a hybrid of 80% Nylon and 20% Spandex, our heart rate monitor chest strap is soft and comfortable. Designed with soft waterproof rubber, the chest strap can keep 15 hr+ comfort for you without affected by sweat ?WIDELY COMPATIBLE?The heart rate monitor replacement band works with compatible with Garmin HRM, Wahoo Tickr (1st & 2nd Gen), Polar (H7 & older), Mo-Fit, Powr Labs, Coospo & more! NOT compatible with recessed heart rate monitors like Polar H9 & H10 , MyZone, Peloton, compatible with Garmin Tri, Wahoo Tickr (2020 3rd Gen) ?ADJUSTABLE CHEST BELT?This heart rate monitor chest strap's wearable size from 25? to 38? . The space of two snap button is about 1.77? (45mm). It can make heart rate monitor not easy to fall during exercise, but also enjoy the most comfortable wearing experience ?PERFECT REPLACEMENT STRAP?The heart rate monitor replacement strap can enhance and extend the life of sensor. The electrodes area can pick up your heart rate date quickly, provide stable connection and accurate data. If you exercise regularly, we suggest you have an extra strap for changing