Plastic-impregnated cloth construction for long-lasting durability. Perforated 1-1/2 inch markers can be separated into half-length sizes. Self-sticking on wire and cable. Non-smear black legend ensures high visibility. Perforated 1/4 in. x 1-1/2 in. markers can be separated into half-length sizes. For applications above or below ground. Specifications: Temperature Range: -40 Degrees F to 180 Degrees F (-40 Degrees C to 82 Degrees C).