This NSi Industries ULTD-627 preprinted underground line tape is 6" wide and 1,000' long and has laminated black letters on a red background for durability and clear visibility during installation in a utility trench. The label reads "CAUTION BURIED ELECTRIC LINE BELOW" in a repeating pattern. The 5 mil thick aluminum tape resists degradation from elements found in the soil and the 35 gauge aluminum foil core allows easy metal detection for subsequent tracing of underground utilities. This underground line tape is suitable for use in identifying underground utilities such as prior to digging or trenching projects.NSi Industries manufactures electrical components and sensors, lighting products, and energy management products. The company, founded in 1975, is headquartered in Huntersville, NC.