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.