The Backpack Harness is designed to easily attach to your MX FUEL Concrete Vibrator. The Backpack Harness gives you the ability to comfortably wear the Concrete Vibrator on your back for extended periods of time. Designed to be fully adjustable with extra padding in the shoulders and lower back, the waist and chest straps provide more comfort and less fatigue. Backed by 1-year limited warranty on manufacturer's defect.