Compatible with Heart Rate Monitors: LIVLOV V11 armband heart rate monitor soft strap width is 20mm, compatible with most heart rate sensors (ANT+, Bluetooth). Specially designed to work on Orange Theory, OTF, Orange Theory Fitness, OTBeat Burn heart rate monitor arm. Also compatible with LIVLOV V9, Polar Verity Sense, Wahoo, Powr Labs, VorTec, smartLAB, Echelon, Fitcent, XOSS, moofit, CooSpo optical hr monitor armband. | Adjustable Sizing Strap Replacement: The package contains two different colors of heart monitor armbands for men and women. Replacement arm band length 15in (380mm) fits wrist/arm size 9.4in - 15in (240mm - 380mm). Please measure your wrist and make sure the size before you purchase. | Comfortable and Breathable Wristband: The arm heart rate monitor strap is made of high -quality materials. Wear comfort and soft, easy to clean, durable. Ensures your device stays securely attached to your arm during climbing, biking, running, and intense workouts. | Wearable Position: Wear arm band on the upper portion of the forearm. Sensor should be on the inside or top of forearm. It should be worn snug enough not to move on your arm, but not so tight that it restricts arm circulation. | 24 -Hour Customer Service: Test without risk. If the replacement soft band should not fit your heart rate armband monitor, please contact us and we can provide you with a full refund. Note: Only arm belt, hrm sensor is not included.

Compatible with Most Armband Heart Rate Monitors: LIVLOV V11 heart rate armband replacement strap is 25mm wide and is compatible with most popular Bluetooth ANT+ heart rate sensors on the market such as Scosche Rhythm+, Polar OH1, Magene, etc. | Garmin Watch Replacement Band: 25mm wristband replacement compatible with Garmin Fenix7/Enduro/Fenix 6X Pro/Fenix 6X Sapphire/Fenix 5X/Fenix 5X Plus/Fenix 3/Fenix 3 HR/Tactix Delta/Tactix Bravo/Tactix Charlie/D2 Charlie/D2 Delta PX/Descent Mk1/Quatix 3 and so on. | Adjustable Sizing Arm Belt Replacement: The velcro design makes it easy to adjust the length of the arm band for a comfortable fit on your forearm, biceps or triceps. Strap length 15in (380mm) fits wrist/arm size 9.4in - 15in (240mm - 380mm). Please measure your wrist and make sure the size before you purchase. | Comfortable and Skin-Friendly: Our hrm replacement arm straps are made of high quality material, tough and soft so you won't feel it. The high elastic surface is impact resistant, slip resistant, scratch resistant, sweat resistant and washable, perfect for golf, baseball, camping, hiking, skiing, skating, cycling, running, climbing, tourism, field training and other outdoor sports. | 24 -Hour Customer Service: 2 * Replacement armband for hr monitor, including black and orange. If you have any questions about the item you received, please feel free to contact us, we will provide you with the best solution within 24 hours.