These Tyvek White B4A Pocket Envelopes offer the unbeatable combination of lightweight strength with superior protection and security. Developed by DuPont, the unique fibre structure of these security envelopes resists water and tears to ensure the contents are protected and cannot be read or stolen during transit.
Supplied in a pack of 100, these B4A sized envelopes are ideal for mailing legal and financial correspondence. The peel and seal closure of these Tyvek 556524 envelopes keep them firmly sealed, ensuring that the contents remain safely inside. These envelopes are also recyclable as they are made from 100% HDPE fibres and are Carbon Trust certified, giving you excellent green credentials.
The lightweight construction will help to reduce your postal costs to save your business money. We have all your postal needs met here at the Post Office Shop with our extensive range of Postal Supplies including postage stamps, mailroom accessories and rubber ink stamps.
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