400 Pcs Bulk #2 8.5x12 Padded Shipping Envelopes for Books and Apparel

Usable Size (Internal): 8.5 x 11 inch — Exterior: 8.5 x 12 inch. Tamper-Proof Seal Guarantee: Once sealed, the high-strength adhesive ensures the envelope cannot be reopened without visible signs of tampering. Low Cost-Per-Unit Bulk Value: Purchasing this 400-pack significantly reduces the individual material cost, maximizing profit margins for frequent shippers. Professional, Consistent Finish: The high-quality paper exterior maintains a clean, unwrinkled appearance, projecting a professional brand image. Efficient Load and Seal Design: The wide opening and smooth lining allow for rapid product insertion, streamlining the packing process during peak hours.