Insulating Electrical Tape, Abrasion-Resistant, Glass Cloth, Tape Adhesive Material Rubber, 1/4 in, 180 ft, 7 mil, 3M (TM), Scotch (R), Series 27, White, Minimum Tape Performance Temperature 32 Degrees F, Maximum Tape Performance Temperature 302 Degrees F, Voltage Rating 600 V, Continuous Roll, Single-Sided