This Scotch heavy-duty shipping packing tape is designed for securing your heaviest packages. The solvent-free hot melt adhesive locks in your heavy-duty contents and locks out everything else. With Scotch heavy-duty tape, even the heaviest packages can withstand rough handling. Heavy-duty packing tape features tough, solvent-free hot melt adhesive locks in your heavy-duty contents and locks out everything else. You don't need layers of Scotch packing tape to get the job done-just one strip at a time-so you save time. Heavy packages can bear the weight and stay sealed. Provides excellent holding power for heavy-duty packaging, shipping and moving. 3.1 mil thickness Holding strength of 30 lbs. weight per inch (tensile strength). Scotch clear packing tape features a clear backing and instant adhesion. Formulated to handle wide temperature ranges, from 40 degrees to 120 degrees. Scotch brand's strongest clear-to-the-core packaging tape, resists slivering, splitting and tearing. Packing tape comes in a pack of 3 rolls. Meets U.S. regulations for standard packages. Guaranteed to Stay Sealed (If your box does not stay sealed, 3M will refund the purchase price of this tape). 1-800-3MHELPS. Proof of purchase required. Contact: 1-800-3MHELPS.