Astorgos 18mm Metal Watch Band for Garmin Smartwarch Compatible Device? Garmin Venu 4 41mm; Garmin Venu 3S 41mm; Garmin Venu 2S 40mm; Garmin Vivoactive 4S X10; Garmin Vivomove 3S; Garmin Forerunner 255S; Garmin Forerunner 255S Music; Garmin Forerunner 265S; Size: Designed to fit wrist sizes 5.5"-8.6"(140mm-218mm) . Choosing the correct size is crucial? 1. Measure the lug width using a ruler (in millimeters) 2. Check if the width specification is marked on the back of your current strap 3. Search online for the specifications of your watch model More color choices - match your daily style with sharp, colorful and fashionable choice garmin watch band for all occasions.