De-Con Zone Barrier Tape allows first responders to identify 3 important zones in decontamination operations. Red hot zone indicates area of contamination. Orange warm zone identifies area of decontamination. Yellow cold zone marks off safe area. High-visibility tape is tear-resistant and non-adhesive. Comes in 1,000-ft. rolls and measures 6 ins. wide. Wrap around trees or poles or secure to walls and barricades.