150 Pack 9.75x12.25 White Rigid Stay Flats Self-Seal Cardboard Envelope Mailers 9.75"x12.25" Album Box Extended core stretch film is

Extended core stretch film is ready to use directly out of the box and doesn't require separate dispensers

5 mil and are opaque with a black interior and light to medium gray exterior

Help keep dust

7x7x6 boxes

and cushioning

150 Pack 9.75x12.25 White Rigid Stay Flats Self-Seal Cardboard Envelope Mailers 9.75"x12.25" Album Box Extended core stretch film isFortify 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