Replacement Elastic StrapGarmin’s soft elastic strap allows your Forerunner wireless heart rate monitor to fit comfortably around the chest. Compatible Devices:EdgeeTrexfenixForerunnerForetrexFR60/FR70GPSMAPMontanaMonterraOregontactixvivofitWARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.