This belt solves multiple problems at once. Lets imagine being in a large MCC room, Look around, where do you hook your barriers to? How do you let folks know you're working on a live line before they stumble into your approach boundary? If you don't mind the extra gear, just lug around barrier bases, or maybe you could hang some disposable barriers, except you forgot the duct tape in your other gear bag Purchase our magnetic retractable barriers and get 15 ft of coverage for your protected area, never worry about your duct tape again