... polyester,aluminum foil,polyethylene film.Features:1) Caution tape printed with different colors, like standard combinations of ... white-red and yellow-black stripes.2) Caution tape printed with warning words, like "Caution", "Danger" ... colors for a special purpose.4) Detectable caution tape is widely used on the underground water pipes, ... -red, yellow-black, green-white, color-striped Warning Tape