| PostSafe SuperStrong equivalent to 51mm Expansion | ||||||||||||||||
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![]() | * Accepts deeper items easily. * No need it use a gusseted envelope. * Envelopes made from 100% polythene. * Looks and feels like paper. * Saves on postage costs. * Royal Mail approved Pricing in Proportion sizes. * Weatherproof, burstproof, Tear and Puncture resistant. * Easy to write on surface. * accepts handwriting, Stamps or franking. * | |||||||||||||||
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