SRC Never-Rust Temporary Warning Line System. Lightweight and quick deployment make this a great choice for setting up a visual warning around a known hazard. Simply set the high-impact polyethylene stanchion in place, drop the weighted rubber base over the top and string the warning flags. Quick setup and easy removal are benefits you will appreciate every time you use them. Stanchions and bases can be stacked and stored compactly away for the next use.