Sold as 12/Pack. Commercial grade shipping tape with excellent holding power for heavy duty packaging and shipping. Hot melt adhesive with typical 3 mil thicknessassures holding strength of 30 lbs of weight per inch (tensile strength). Release coating makes unwind easy. Strong, durable, solvent-free hot melt adhesive seals and protects. Seals with one strip and keeps boxes closed. Scotch Brand Packaging Tape: The choice of mailroom pros. For tough, industrial use. Resists slivering, splitting and tearing. Guaranteed to Stay Sealed (If your box does not stay sealed, 3M will refund the purchase price of this tape. Proof of purchase required. Contact: 1-800-3MHELPS). Provides excellent holding power for heavy-duty packaging and shipping. Use the included dispenser to easily apply tape to your boxes and packages.