2"x1000FT 5 Mil Underground Detectable Warning Tape that is the ultimate protection for underground utility lines. Highly resistant to all chemical and organic compounds and immediately identifies the type of utility line buried below, both by permanently printed legend and an APWA designated utility color. Detectable tapes have an aluminum backing that makes it detectable by a non-ferrous metal detector. (12 rolls/cs.) 1 case minimum order ($26.00/rl.) Usually drop ships in 1-2 days.