This Giant 1000 FT. Roll Lets You Put Up An Instant Warning Parameter to Mark Dangerous Construction Work-In-Progress, Obstacles, Hazards--Just About Anything That Creates A Safety Risk. Great For Temporary Crowd Control, Directing Foot and Vehicle Traffic; Homeowners Can Alert Neighbors and Visitors to Temporary Property Dangers. This Tough Tape Holds Up to High Winds, Rain and Snow, Holds Bright Color In Sunlight For Days. Empire Level Is The Leading Designer and Producer Of Levels, Squares, Layout Tools