2000 Pack 9x11.5 White Rigid Stay Flats Self-Seal Cardboard Envelope Mailers 9"x11.5" 3" Tubes Help keep dust

Help keep dust

providing extensive coverage for insulation projectsDUAL PROTECTION: Features reflective surface and bubble layer working together to create an effective thermal barrierVERSATILE USE: Ideal for both summer heat reduction and cold weather insulation in walls

providing a strong seal that prevents any damage or tampering during transit

4" width X 6" length labels

24" wide x 900' long

2000 Pack 9x11.5 White Rigid Stay Flats Self-Seal Cardboard Envelope Mailers 9"x11.5" 3" Tubes Help keep dustFortify 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