Scotch Heavy Duty Shipping Packaging Tape with Refillable Dispenser, 3" Core, 1.88" x 38.2 yd, 1 Roll (3850S-RD) Guaranteed to Stay Sealed. *Proof of purchase required for reimbursement or replacement of tape. Contact: 1-800-3MHELPS Provides excellent holding power for heavy-duty packaging and shipping Strong seal on all box types, including harder-to-stick-to 100% recycled boxes. Seals seams with one strip so boxes stay closed. Strong, durable solvent-free hot melt adhesive seals and protects. Your heavy packages can bear the weight and stay sealed through it all. Release coating makes unwind easy. 3.1 mil thick, Resists slivering, splitting and tearing. You don't need layers of tape to get the job done - Just one strip - so you save time. Scotch Brands strongest clear-to-the-core packaging tape Clear backing and instant adhesion Meets U.S. Postal regulations for standard packages Made in USA with US and globally sourced materials