Scotch Heavy Duty Shipping Packaging Tape 2-Pack 1.88-in x 163.8-ft Clear Packing Tape (3850-21RD) Heavy Duty Shipping Packaging Tape. Scotch packaging tape unwinds smoothly and easily; resists splitting and tearing, adheres instantly and has a strong film backing 3.1 mil thick Includes refillable dispenser. Resists slivering, splitting and tearing Seals seams with 1 strip and keeps boxes closed. Hot melt adhesive Meets USPS regulations for standard packages. Extreme holding power for heavy tasks; adheres instantly, ideal for packaging overstuffed cartons Made in the USA with globally sourced materials