One option for indicating a warning and barricading off an area is with warning posts. These posts in our store come in solid white and yellow varieties, as well as striped yellow and black. Either way, the post is a symbol of caution that indicates a worker or pedestrian should not cross it. How do you set a boundary with one of these posts? One option, in addition to using a few posts to line an area, is to attach chains between them. We carry such yellow chains in our store that can attach to these posts and form a boundary indicating a potential hazard. Signs, in addition, can be added to the area to indicate “safety first.”