1.89″ x 120.3 yd, 48mm x 110m, metallic flexfix tape, use for metal & metal connections, forms an air tight closure on flexible joints, high tack, long life acrylic adhesive, no solvent odor, excellent resistance to mold, humidity, flame spread, smoke generation & high temperatures, hand tearable, ul coded for flex duct & ul 181b-fx 82p4 listed.