Description: 3"Core; 1"x60Yards; Clear. Polyester backing is reinforced with continuous glass yarn for a high tensile strength of 380 lb./in. width, nick and abrasion resistance and excellent handling. Aggressive high-shear adhesion provides heavy-duty closure even on hard-to-adhere fiberboard. 3" core. Meets U.S. Postal Regulations for standard packages. 3M Commercial Office Supply Div., Tapes, Filament Tapes, Filaments, Scotch High Performance, Premium Grade, Shipping"