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). Description： Material:silicone + fiber Total length:about 98cm / 38.58 inches Two hole distance:45 mm / 1.77 inches Package included： 1*Adjustable Chest Mount Belt HIGH QUALITY, TOP VALUE: Why pay for a name brand strap that costs as much as a new Heart Rate Monitor? Get the same quality, comfort & compatibility for a fraction of the cost from a US based training performance brand. COMPATIBLE WITH ALL HEART RATE SENSORS: Chest strap works with the most popular heart rate monitor and sensor such as compatible with Garmin, Polar, Wahoo and more! 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 EASY USE AND CLEAN: Utilizing the same snap attachment method. The fabric of the strap can be removed and hand-washed as often as needed.