Watch Strap - material: silicon, for wrist circumference up to 249mm, compatible with Garmin Approach S60, Garmin D2 Delta , Garmin Fenix, Garmin Fenix 5, Garmin Fenix 5 Plus, Garmin Forerunner, Garmin Forerunner 935, Garmin Forerunner 945, Garmin MARQ and Garmin Quatix 5