If you go GPS hiking, this backpack tether accessory is essential for your Garmin handheld GPS device. Please attach it to your backpack tether strap to prevent loss. Pull down the Garmin 67i using the lanyard strap to check its status, maps, etc. And keeps it attached to your backpack in case of a fall. Protect your Garmin backpack tether handheld GPS from ground impact during a fall.