150 Pack 11x13.5 White Rigid Stay Flats Self-Seal Cardboard Envelope Mailers 11"x13.5" 1.5" Tubes 2000 6x9 Poly Mailers Envelopes

2000 6x9 Poly Mailers Envelopes Self Seal Shipping Bags 2

18" wide x 900' long

6" outer diameter (OD)

With its substantial 25 lb weight and generous 24" x 36" size

twine or strapping

150 Pack 11x13.5 White Rigid Stay Flats Self-Seal Cardboard Envelope Mailers 11"x13.5" 1.5" Tubes 2000 6x9 Poly Mailers EnvelopesFortify your packages with the most robust cardboard mailers on the market. Crafted from premium 250 GSM material, these white mailers are built to shield your shipments from the elements. Ultra durable 250 GSM cardboard construction Self sealing closure for seamless packing Heavy duty adhesive to prevent leaks and spills Don't entrust your valuable items to flimsy packaging. Our top tier cardboard mailers provide unparalleled protection to ensure