Polyken 339 Series 2.5" x 60yd UL Listed Premium Aluminum Foil Tape (UL181A-P & B-FX Listed) Roll Size: 2.5" x 60yd. (72mm x 54.9m) Adhesive: Acrylic; Backing: Foil Contributes toward satisfying LEED EA Credit 1 Contributes toward satisfying LEED EQ Credit 4.1 UL listing printed on the tape