Kee® Mark is a sturdy, freestanding and cost effective portable warning line solution for indoors and out. The simple, modular design incorporates durable galvanized Kee Klamp® components and galvanized uprights that stay in place.Heavy-duty nylon mesh flags are available in safety orange or safety yellow for greater visibility. Stainless steel wire cable is vinyl coated in safety yellow for long-term, outdoor use. Stainless steel shackles connect the cables for easy setup and adjustment. Removable bases are made of solid, heavy duty recycled rubber, engineered to stand its ground, job site after job site. Meets all OSHA standard for warning lines.