These clear and opaque Postsafe white mailing bags are extra strong, 75 micron polythene mailers which provide significant amounts of extra security when mailing heavier items in the post. They are weatherproof, burstproof, tear and puncture resistant and feature a secure peel and seal closure to save valuable time in busy packing environments. Easily wrapped around the contents to save space and ensure you do not go over the intended Royal Mail price band. The lightweight design of these Postsafe envelopes also helps save on postage costs, while the easy to write on surface accepts handwriting, stamps, labels and franking.
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