Use Scotch's strongest packaging tape so even the heaviest packages can withstand rough handing. This tape offers 20 times the strength of acrylic tapes (in sheer holding adhesion power compared to acrylic tapes based on ASTM D3654) so you can seal your boxes with confidence. It seals seams with one strip and keeps boxes closed. Tape meets U.S. Postal Regulations for standard packages. Tape roll comes on a convenient, refillable dispenser in a smaller size that is easy to store.