250 Pack 12.5x19 Inch Padded Envelopes Self Sealing Wholesale Shipping Supplies

Usable Size (Internal): 12.5" x 18" — Exterior: 12.5" x 19". Uncompromised Closure Strength: The superior permanent adhesive maintains its sealing integrity across varying temperatures and humidity levels. Optimized for Economy Shipping: The low material weight is calibrated to ensure your packages qualify for the lowest possible shipping tiers. Durable for Long-Distance Mail: Built with a resilient Kraft paper exterior that withstands the demands of long-haul and international shipping logistics. Ready for Automated Systems: Uniform size and material consistency make these mailers suitable for use with automated packing and sorting machinery.