Conductive Electrical Tape, Tape Backing Material Aluminum, 1 in, Tape Color Silver, Tape Sub-Type General Purpose Foil, Tape Adhesive Material Acrylic, 4 mil, 3M(TM), 1120, Minimum Tape Performance Temperature -40 Degrees F, Maximum Tape Performance Temperature 265 Degrees F, Voltage Rating 600 V, Shielding Effectiveness Fair (50 to 70dB), Liner Included Yes, Product Form Discs, Tape Adhesive Format Single-Sided, Imperial Tape Shape Diameter 1 in, Package Quantity 250