400 Pack 12.5x9.5 White Rigid Stay Flats Self-Seal Cardboard Envelope Mailers 12.5"x9.5"

Crafted from premium 250 GSM material for enhanced durability Self-sealing closure for seamless packing Top-tier cardboard mailers offer unparalleled protection Ensure packages arrive in pristine condition Reliable alternative to flimsy packagingYou may also like 2000 Pack 9.75x12.25 White Rigid Stay Flats Self-Seal Cardboard Envelope Mailers 9.75"x12.25".