Lufkin CN1293SF5871 1/2-Inch x 50-Foot Oil Gauging Atlas Chrome Clad /Nubian Double Duty Tape Outage 1/2-Inch x 50-Feet with black markings bonded to steel Recessed beneath multiple layers of nickel and chrome electroplating Provides greater resistance to wear and corrosion All tapes read right to left Heavy-duty frame designed for years of rugged use