SUPERSTRONG EQUIVALENT TO 51mm EXPANSION ENVELOPES
- NEW SMALL Packs available
- Envelopes accept deeper items easily, no need for gussets.
- White Opaque Envelopes made from 100% Polythene.
- Looks and feels like paper.
- Large sizes feature double seal for Extra security.
- Weatherproof, burstproof, tear and puncture resistant.
- Easy to write on surface.
- Accepts handwriting, stamps or franking.
- Saves on postage.
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