Expandable envelopes are a gruop of office envelopes known as RBD envelopes. The envelopes have expanded sides and bottom. Thanks to such solution the interior of envelope is much more capacious. RBD envelopes are perfect for sending or storing bigger quantities of correspondence. The envelopes are made from the paper of higher grammage that makes envelopes more resistant and protects the correspondence against the damage better. In our offer you can find brown expandable envelopes with HK closing in C4, B4 and E4 format. The full box of envelopes contains 250 pieces but they can be bought also in packets of 50 pieces. We can also provide our clients with white expandable envelopes as well as C5 format for a special order.

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