★ This Chest belt works with most popular heart rate monitors, recognizes compatible device after first use
★ Perfect chest strap replacement for running, swimming, cycling and indoor training etc.
★ Made of Soft Fabric: Nylon (80%) and Spandex (20%), soft elastic strap provides a comfortable fit.
★ Adjustable Sizing: Comfortable and adjustable elastic strap, wearing size between 23.6-47.2 inch.
★ The space of two snap button is 45mm, suitable for Polar, Wahoo and Garmin transmitters, etc.