From the Manufacturer
Scotch Super Strength Packaging Tape w/ pistol grip dispenser,1.88 in x 54.6 yd (48mm x50m). Ideal for your heaviest packages. Meets US Postal regulations for standard packages. Super strength for heavy packaging. 3M's strongest hot melt adhesive. Clear backing and instant adhesion. Includes a heavy duty dispenser.
Scotch High Performance Packaging Tape is designed to meet your moving and shipping needs. A clear tape, with hot melt rubber resin adhesive for heavy boxes. Dispenser designed to ensure the tape will not fall back on the roll, and the tape has an easy unwind. Meets U.S. postal regulations for standard packages.Great for general shipping or moving needs, such as packing boxes in the office. Made in the USA.