Compatible With All Heart Rate Sensorchest Strap Works With The Most Popular Bluetooth, Ant+ and 5.3Khz Heart Rate Monitor. Such As Wahoo, Garmin, Polar, Powr Labs, Coospo, Moofit, Xoss, Mo-Fit, Fitcent Hrm. Not Compatible With Recessed Heart Rate Monitors Like Polar H9 & H10, Polar Ft7, Myzone, Peloton, Wahoo Tickr (2020 3Rd Gen). . Adjustable Sizingwearable Size From 65Cm To 95Cm With A Max Stretch To 130Cm. The Space of Two Snap Button Is About 45Mm. If The Replacement Soft Belt Does Not Fit Your Heart Rate Sensor, Please Contact Us and We Can Provide You With A Full Refund. . Super Comfortable Soft Strapmade With A Hybrid of Silicone & Fiber, Our Strap Is Designed for 10 Hr+ Comfort. The Fabric of The Strap Can Be Removed and Hand-Washed As Often As Needed. . Reliabilitythe Replacement Chest Strap Can Enhance and Extend The Life of Sensor. The Electrodes Area Can Pick Up Your Heart Rate Date Quickly, Providing Stable Connection and Accurate Data To Help You Maximize Your Workout. If You Exercise Regularly, We Suggest You Have An Extra Strap for Changing.