1000 Pcs Wholesale 4x8 Inch Poly Padded Envelopes Max Security Bubble Mailers

Usable Size (Internal): 4 x 7 inch — Exterior: 4 x 8 inch. Instant Security Lock: The peel-and-seal strip locks down immediately upon contact, creating a strong, secure barrier against pilferage. Optimized for High-Volume Savings: Bulk purchasing at 1000 pieces guarantees a superior cost-per-unit, directly improving e-commerce profit margins. Flexible and Durable Film: The resilient Poly material is highly flexible yet sturdy, conforming slightly to contents while resisting outside forces.